164374644 has 48 divisors (see below), whose sum is σ = 439786368. Its totient is φ = 46808448.

The previous prime is 164374631. The next prime is 164374663. The reversal of 164374644 is 446473461.

164374644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 23542 + ... + 29714.

It is an arithmetic number, because the mean of its divisors is an integer number (9162216).

Almost surely, 2^164374644 is an apocalyptic number.

164374644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

164374644 is an abundant number, since it is smaller than the sum of its proper divisors (275411724).

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

164374644 is a wasteful number, since it uses less digits than its factorization.

164374644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504 (or 6502 counting only the distinct ones).

The product of its digits is 193536, while the sum is 39.

The square root of 164374644 is about 12820.8675213497. The cubic root of 164374644 is about 547.7868574546.

The spelling of 164374644 in words is "one hundred sixty-four million, three hundred seventy-four thousand, six hundred forty-four".