233218972 has 24 divisors (see below), whose sum is σ = 469576800. Its totient is φ = 99278400.

The previous prime is 233218963. The next prime is 233218987. The reversal of 233218972 is 279812332.

It is a congruent number.

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, 23779 + ... + 32122.

It is an arithmetic number, because the mean of its divisors is an integer number (19565700).

Almost surely, 2^233218972 is an apocalyptic number.

It is an amenable number.

233218972 is an abundant number, since it is smaller than the sum of its proper divisors (236357828).

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

233218972 is a wasteful number, since it uses less digits than its factorization.

233218972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56061 (or 56059 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 233218972 is about 15271.5085044013. The cubic root of 233218972 is about 615.5376548398.

The spelling of 233218972 in words is "two hundred thirty-three million, two hundred eighteen thousand, nine hundred seventy-two".