290164690 has 8 divisors (see below), whose sum is σ = 522296460. Its totient is φ = 116065872.

The previous prime is 290164669. The next prime is 290164697. The reversal of 290164690 is 96461092.

It can be written as a sum of positive squares in 2 ways, for example, as 280261081 + 9903609 = 16741^2 + 3147^2 .

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

It is a super-2 number, since 2×290164690² = 168391094645592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (290164697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14508225 + ... + 14508244.

Almost surely, 2^290164690 is an apocalyptic number.

290164690 is a deficient number, since it is larger than the sum of its proper divisors (232131770).

290164690 is a wasteful number, since it uses less digits than its factorization.

290164690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29016476.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 290164690 is about 17034.2211445079. The cubic root of 290164690 is about 662.0358700059.

The spelling of 290164690 in words is "two hundred ninety million, one hundred sixty-four thousand, six hundred ninety".