233661432 has 16 divisors (see below), whose sum is σ = 584153640. Its totient is φ = 77887136.

The previous prime is 233661431. The next prime is 233661451. The reversal of 233661432 is 234166332.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 233661432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233661431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4867923 + ... + 4867970.

Almost surely, 2^233661432 is an apocalyptic number.

It is an amenable number.

233661432 is an abundant number, since it is smaller than the sum of its proper divisors (350492208).

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

233661432 is a wasteful number, since it uses less digits than its factorization.

233661432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9735902 (or 9735898 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 233661432 is about 15285.9880936759. The cubic root of 233661432 is about 615.9266722745.

The spelling of 233661432 in words is "two hundred thirty-three million, six hundred sixty-one thousand, four hundred thirty-two".