232155388 has 12 divisors (see below), whose sum is σ = 406880320. Its totient is φ = 115903872.

The previous prime is 232155359. The next prime is 232155401. The reversal of 232155388 is 883551232.

It is a super-2 number, since 2×232155388² = 107792248354861088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40428 + ... + 45811.

Almost surely, 2^232155388 is an apocalyptic number.

It is an amenable number.

232155388 is a deficient number, since it is larger than the sum of its proper divisors (174724932).

232155388 is a wasteful number, since it uses less digits than its factorization.

232155388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86916 (or 86914 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 232155388 is about 15236.6462189026. The cubic root of 232155388 is about 614.6005187644.

The spelling of 232155388 in words is "two hundred thirty-two million, one hundred fifty-five thousand, three hundred eighty-eight".