235920188 has 48 divisors (see below), whose sum is σ = 508273920. Its totient is φ = 93550464.

The previous prime is 235920187. The next prime is 235920197. The reversal of 235920188 is 881029532.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235920187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17720 + ... + 28032.

It is an arithmetic number, because the mean of its divisors is an integer number (10589040).

Almost surely, 2^235920188 is an apocalyptic number.

235920188 is a gapful number since it is divisible by the number (28) 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 235920188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254136960).

235920188 is an abundant number, since it is smaller than the sum of its proper divisors (272353732).

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

235920188 is a wasteful number, since it uses less digits than its factorization.

235920188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10386 (or 10384 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 235920188 is about 15359.6936167360. The cubic root of 235920188 is about 617.9049891817.

The spelling of 235920188 in words is "two hundred thirty-five million, nine hundred twenty thousand, one hundred eighty-eight".