164872370 has 64 divisors (see below), whose sum is σ = 331865856. Its totient is φ = 58579200.

The previous prime is 164872369. The next prime is 164872387. The reversal of 164872370 is 73278461.

It is a Curzon number.

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 in 31 ways as a sum of consecutive naturals, for example, 726197 + ... + 726423.

It is an arithmetic number, because the mean of its divisors is an integer number (5185404).

Almost surely, 2^164872370 is an apocalyptic number.

164872370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164872370 is an abundant number, since it is smaller than the sum of its proper divisors (166993486).

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

164872370 is a wasteful number, since it uses less digits than its factorization.

164872370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 164872370 is about 12840.2636265771. The cubic root of 164872370 is about 548.3391993985.

The spelling of 164872370 in words is "one hundred sixty-four million, eight hundred seventy-two thousand, three hundred seventy".