290637164 has 12 divisors (see below), whose sum is σ = 513282000. Its totient is φ = 143985168.

The previous prime is 290637161. The next prime is 290637203. The reversal of 290637164 is 461736092.

It is a super-2 number, since 2×290637164² = 168939922195925792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (290637161) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 332864 + ... + 333735.

It is an arithmetic number, because the mean of its divisors is an integer number (42773500).

Almost surely, 2^290637164 is an apocalyptic number.

It is an amenable number.

290637164 is a deficient number, since it is larger than the sum of its proper divisors (222644836).

290637164 is a wasteful number, since it uses less digits than its factorization.

290637164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666712 (or 666710 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 290637164 is about 17048.0838806008. The cubic root of 290637164 is about 662.3950052668.

The spelling of 290637164 in words is "two hundred ninety million, six hundred thirty-seven thousand, one hundred sixty-four".