230790690 has 48 divisors (see below), whose sum is σ = 646217208. Its totient is φ = 56809728.

The previous prime is 230790667. The next prime is 230790709. The reversal of 230790690 is 96097032.

It can be written as a sum of positive squares in 4 ways, for example, as 211789809 + 19000881 = 14553^2 + 4359^2 .

It is a super-2 number, since 2×230790690² = 106528685181352200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97459 + ... + 99798.

Almost surely, 2^230790690 is an apocalyptic number.

230790690 is an abundant number, since it is smaller than the sum of its proper divisors (415426518).

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

230790690 is a wasteful number, since it uses less digits than its factorization.

230790690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197283 (or 197280 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 230790690 is about 15191.7967995889. The cubic root of 230790690 is about 613.3938657831.

The spelling of 230790690 in words is "two hundred thirty million, seven hundred ninety thousand, six hundred ninety".