290632256 has 14 divisors (see below), whose sum is σ = 576723510. Its totient is φ = 145316096.

The previous prime is 290632253. The next prime is 290632283. The reversal of 290632256 is 652236092.

It can be written as a sum of positive squares in only one way, i.e., 244609600 + 46022656 = 15640^2 + 6784^2 .

It is not an unprimeable number, because it can be changed into a prime (290632253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2270501 + ... + 2270628.

Almost surely, 2^290632256 is an apocalyptic number.

It is an amenable number.

290632256 is a deficient number, since it is larger than the sum of its proper divisors (286091254).

290632256 is an equidigital number, since it uses as much as digits as its factorization.

290632256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541141 (or 4541131 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 290632256 is about 17047.9399341973. The cubic root of 290632256 is about 662.3912766166.

The spelling of 290632256 in words is "two hundred ninety million, six hundred thirty-two thousand, two hundred fifty-six".