235528920 has 144 divisors (see below), whose sum is σ = 841538880. Its totient is φ = 57087360.

The previous prime is 235528913. The next prime is 235528927. The reversal of 235528920 is 29825532.

235528920 is a `hidden beast` number, since 2 + 3 + 552 + 89 + 20 = 666.

235528920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (235528913) and next prime (235528927).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235528927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40857 + ... + 46263.

It is an arithmetic number, because the mean of its divisors is an integer number (5844020).

Almost surely, 2^235528920 is an apocalyptic number.

235528920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235528920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420769440).

235528920 is an abundant number, since it is smaller than the sum of its proper divisors (606009960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

235528920 is a wasteful number, since it uses less digits than its factorization.

235528920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446 (or 5428 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 235528920 is about 15346.9514888137. The cubic root of 235528920 is about 617.5632066079.

The spelling of 235528920 in words is "two hundred thirty-five million, five hundred twenty-eight thousand, nine hundred twenty".