232155440 has 120 divisors (see below), whose sum is σ = 614491920. Its totient is φ = 81410560.

The previous prime is 232155431. The next prime is 232155461. The reversal of 232155440 is 44551232.

It is a happy number.

232155440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×232155440² = 107792296643187200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280307 + ... + 281133.

It is an arithmetic number, because the mean of its divisors is an integer number (5120766).

Almost surely, 2^232155440 is an apocalyptic number.

232155440 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 232155440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307245960).

232155440 is an abundant number, since it is smaller than the sum of its proper divisors (382336480).

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

232155440 is a wasteful number, since it uses less digits than its factorization.

232155440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 232155440 is about 15236.6479253148. The cubic root of 232155440 is about 614.6005646521.

The spelling of 232155440 in words is "two hundred thirty-two million, one hundred fifty-five thousand, four hundred forty".