290212232 has 36 divisors (see below), whose sum is σ = 576112005. Its totient is φ = 137035296.

The previous prime is 290212211. The next prime is 290212249. The reversal of 290212232 is 232212092.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 211818916 + 78393316 = 14554^2 + 8854^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12046.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 290212198 and 290212207.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 915338 + ... + 915654.

Almost surely, 2^290212232 is an apocalyptic number.

It is an amenable number.

290212232 is a deficient number, since it is larger than the sum of its proper divisors (285899773).

290212232 is an equidigital number, since it uses as much as digits as its factorization.

290212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 290212232 is about 17035.6165723463. The cubic root of 290212232 is about 662.0720250949.

The spelling of 290212232 in words is "two hundred ninety million, two hundred twelve thousand, two hundred thirty-two".