164652290 has 32 divisors (see below), whose sum is σ = 340338240. Its totient is φ = 56721600.

The previous prime is 164652281. The next prime is 164652307. The reversal of 164652290 is 92256461.

It is a happy number.

It is a super-2 number, since 2×164652290² = 54220753204488200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164652290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37301 + ... + 41480.

It is an arithmetic number, because the mean of its divisors is an integer number (10635570).

Almost surely, 2^164652290 is an apocalyptic number.

164652290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164652290 is an abundant number, since it is smaller than the sum of its proper divisors (175685950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164652290 is a wasteful number, since it uses less digits than its factorization.

164652290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78818.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 164652290 is about 12831.6908472734. The cubic root of 164652290 is about 548.0951071010.

The spelling of 164652290 in words is "one hundred sixty-four million, six hundred fifty-two thousand, two hundred ninety".