20197044 has 36 divisors (see below), whose sum is σ = 58347744. Its totient is φ = 5770512.

The previous prime is 20197007. The next prime is 20197069. The reversal of 20197044 is 44079102.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20196999 and 20197017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39822 + ... + 40325.

Almost surely, 2^20197044 is an apocalyptic number.

It is an amenable number.

20197044 is an abundant number, since it is smaller than the sum of its proper divisors (38150700).

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

20197044 is a wasteful number, since it uses less digits than its factorization.

20197044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80164 (or 80159 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20197044 is about 4494.1121481334. The cubic root of 20197044 is about 272.3302828952.

The spelling of 20197044 in words is "twenty million, one hundred ninety-seven thousand, forty-four".