233965690 has 36 divisors (see below), whose sum is σ = 490605498. Its totient is φ = 80100720.

The previous prime is 233965687. The next prime is 233965727. The reversal of 233965690 is 96569332.

233965690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 210569121 + 23396569 = 14511^2 + 4837^2 .

It is a super-2 number, since 2×233965690² = 109479888194352200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 338245 + ... + 338935.

Almost surely, 2^233965690 is an apocalyptic number.

233965690 is an abundant number, since it is smaller than the sum of its proper divisors (256639808).

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

233965690 is an frugal number, since it uses more digits than its factorization.

233965690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 43.

The square root of 233965690 is about 15295.9370422345. The cubic root of 233965690 is about 616.1938955735.

Multiplying 233965690 by its product of nonzero digits (262440), we get a square (61401955683600 = 7835940²).

The spelling of 233965690 in words is "two hundred thirty-three million, nine hundred sixty-five thousand, six hundred ninety".