231552040 has 64 divisors (see below), whose sum is σ = 546134400. Its totient is φ = 88188672.

The previous prime is 231552001. The next prime is 231552047. The reversal of 231552040 is 40255132.

It is not an unprimeable number, because it can be changed into a prime (231552047) 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 15 ways as a sum of consecutive naturals, for example, 269131 + ... + 269989.

It is an arithmetic number, because the mean of its divisors is an integer number (8533350).

Almost surely, 2^231552040 is an apocalyptic number.

231552040 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 231552040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273067200).

231552040 is an abundant number, since it is smaller than the sum of its proper divisors (314582360).

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

231552040 is a wasteful number, since it uses less digits than its factorization.

231552040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 231552040 is about 15216.8340991154. The cubic root of 231552040 is about 614.0676289890.

The spelling of 231552040 in words is "two hundred thirty-one million, five hundred fifty-two thousand, forty".