20874444 has 24 divisors (see below), whose sum is σ = 49507248. Its totient is φ = 6843840.

The previous prime is 20874431. The next prime is 20874449. The reversal of 20874444 is 44447802.

It is not an unprimeable number, because it can be changed into a prime (20874449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13527 + ... + 14990.

It is an arithmetic number, because the mean of its divisors is an integer number (2062802).

Almost surely, 2^20874444 is an apocalyptic number.

It is an amenable number.

20874444 is an abundant number, since it is smaller than the sum of its proper divisors (28632804).

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

20874444 is a wasteful number, since it uses less digits than its factorization.

20874444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28585 (or 28583 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 20874444 is about 4568.8558742863. The cubic root of 20874444 is about 275.3414777273.

The spelling of 20874444 in words is "twenty million, eight hundred seventy-four thousand, four hundred forty-four".