290825636 has 6 divisors (see below), whose sum is σ = 508944870. Its totient is φ = 145412816.

The previous prime is 290825621. The next prime is 290825653. The reversal of 290825636 is 636528092.

It can be written as a sum of positive squares in only one way, i.e., 182790400 + 108035236 = 13520^2 + 10394^2 .

It is a junction number, because it is equal to n+sod(n) for n = 290825593 and 290825602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36353201 + ... + 36353208.

It is an arithmetic number, because the mean of its divisors is an integer number (84824145).

Almost surely, 2^290825636 is an apocalyptic number.

It is an amenable number.

290825636 is a deficient number, since it is larger than the sum of its proper divisors (218119234).

290825636 is a wasteful number, since it uses less digits than its factorization.

290825636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72706413 (or 72706411 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 290825636 is about 17053.6106440836. The cubic root of 290825636 is about 662.5381573371.

The spelling of 290825636 in words is "two hundred ninety million, eight hundred twenty-five thousand, six hundred thirty-six".