164623470 has 32 divisors (see below), whose sum is σ = 431015040. Its totient is φ = 39908640.

The previous prime is 164623451. The next prime is 164623477. The reversal of 164623470 is 74326461.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164623477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249100 + ... + 249759.

It is an arithmetic number, because the mean of its divisors is an integer number (13469220).

Almost surely, 2^164623470 is an apocalyptic number.

164623470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164623470 is an abundant number, since it is smaller than the sum of its proper divisors (266391570).

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

164623470 is a wasteful number, since it uses less digits than its factorization.

164623470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498880.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 164623470 is about 12830.5677972567. The cubic root of 164623470 is about 548.0631265301.

The spelling of 164623470 in words is "one hundred sixty-four million, six hundred twenty-three thousand, four hundred seventy".