23031432 has 32 divisors (see below), whose sum is σ = 63976800. Its totient is φ = 7677072.

The previous prime is 23031409. The next prime is 23031461. The reversal of 23031432 is 23413032.

23031432 is a `hidden beast` number, since 230 + 3 + 1 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53098 + ... + 53529.

It is an arithmetic number, because the mean of its divisors is an integer number (1999275).

Almost surely, 2^23031432 is an apocalyptic number.

It is an amenable number.

23031432 is an abundant number, since it is smaller than the sum of its proper divisors (40945368).

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

23031432 is a wasteful number, since it uses less digits than its factorization.

23031432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106642 (or 106632 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23031432 is about 4799.1074170100. The cubic root of 23031432 is about 284.5161874607.

Adding to 23031432 its reverse (23413032), we get a palindrome (46444464).

The spelling of 23031432 in words is "twenty-three million, thirty-one thousand, four hundred thirty-two".