20374164 has 36 divisors (see below), whose sum is σ = 52276224. Its totient is φ = 6689232.

The previous prime is 20374163. The next prime is 20374169. The reversal of 20374164 is 46147302.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20374163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1812 + ... + 6635.

Almost surely, 2^20374164 is an apocalyptic number.

It is an amenable number.

20374164 is an abundant number, since it is smaller than the sum of its proper divisors (31902060).

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

20374164 is a wasteful number, since it uses less digits than its factorization.

20374164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524 (or 8519 counting only the distinct ones).

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

The square root of 20374164 is about 4513.7749168517. The cubic root of 20374164 is about 273.1240429740.

The spelling of 20374164 in words is "twenty million, three hundred seventy-four thousand, one hundred sixty-four".