235643928 has 128 divisors (see below), whose sum is σ = 675225600. Its totient is φ = 67931136.

The previous prime is 235643923. The next prime is 235643951. The reversal of 235643928 is 829346532.

It is a self number, because there is not a number n which added to its sum of digits gives 235643928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235643921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 752700 + ... + 753012.

It is an arithmetic number, because the mean of its divisors is an integer number (5275200).

Almost surely, 2^235643928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235643928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337612800).

235643928 is an abundant number, since it is smaller than the sum of its proper divisors (439581672).

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

235643928 is a wasteful number, since it uses less digits than its factorization.

235643928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 477 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 235643928 is about 15350.6979645878. The cubic root of 235643928 is about 617.6637082816.

The spelling of 235643928 in words is "two hundred thirty-five million, six hundred forty-three thousand, nine hundred twenty-eight".