233640472 has 96 divisors (see below), whose sum is σ = 503982000. Its totient is φ = 101337600.

The previous prime is 233640467. The next prime is 233640487. The reversal of 233640472 is 274046332.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2313222 + ... + 2313322.

Almost surely, 2^233640472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233640472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251991000).

233640472 is an abundant number, since it is smaller than the sum of its proper divisors (270341528).

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

233640472 is a wasteful number, since it uses less digits than its factorization.

233640472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 233640472 is about 15285.3024831045. The cubic root of 233640472 is about 615.9082550159.

The spelling of 233640472 in words is "two hundred thirty-three million, six hundred forty thousand, four hundred seventy-two".