290625466 has 8 divisors (see below), whose sum is σ = 446570964. Its totient is φ = 141768480.

The previous prime is 290625451. The next prime is 290625499. The reversal of 290625466 is 664526092.

It can be written as a sum of positive squares in 2 ways, for example, as 272943441 + 17682025 = 16521^2 + 4205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×290625466² = 168926322975434312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1772025 + ... + 1772188.

Almost surely, 2^290625466 is an apocalyptic number.

290625466 is a deficient number, since it is larger than the sum of its proper divisors (155945498).

290625466 is a wasteful number, since it uses less digits than its factorization.

290625466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544256.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 290625466 is about 17047.7407887380. The cubic root of 290625466 is about 662.3861181254.

The spelling of 290625466 in words is "two hundred ninety million, six hundred twenty-five thousand, four hundred sixty-six".