20164374 has 48 divisors (see below), whose sum is σ = 45405360. Its totient is φ = 6462720.

The previous prime is 20164373. The next prime is 20164379. The reversal of 20164374 is 47346102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20164373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65529 + ... + 65835.

It is an arithmetic number, because the mean of its divisors is an integer number (945945).

Almost surely, 2^20164374 is an apocalyptic number.

20164374 is an abundant number, since it is smaller than the sum of its proper divisors (25240986).

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

20164374 is a wasteful number, since it uses less digits than its factorization.

With its successor (20164375) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (442).

20164374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20164374 is about 4490.4759213250. The cubic root of 20164374 is about 272.1833664813.

The spelling of 20164374 in words is "twenty million, one hundred sixty-four thousand, three hundred seventy-four".