233970642 has 12 divisors (see below), whose sum is σ = 506936430. Its totient is φ = 77990208.

The previous prime is 233970623. The next prime is 233970661. The reversal of 233970642 is 246079332.

It is a happy number.

233970642 is a `hidden beast` number, since 2 + 3 + 3 + 9 + 7 + 0 + 642 = 666.

233970642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (233970623) and next prime (233970661).

It can be written as a sum of positive squares in only one way, i.e., 168506361 + 65464281 = 12981^2 + 8091^2 .

It is a super-2 number, since 2×233970642² = 109484522635784328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233970597 and 233970606.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6499167 + ... + 6499202.

Almost surely, 2^233970642 is an apocalyptic number.

233970642 is an abundant number, since it is smaller than the sum of its proper divisors (272965788).

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

233970642 is a wasteful number, since it uses less digits than its factorization.

233970642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12998377 (or 12998374 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 233970642 is about 15296.0989144291. The cubic root of 233970642 is about 616.1982428928.

The spelling of 233970642 in words is "two hundred thirty-three million, nine hundred seventy thousand, six hundred forty-two".