20874370 has 16 divisors (see below), whose sum is σ = 40989888. Its totient is φ = 7590640.

The previous prime is 20874367. The next prime is 20874379. The reversal of 20874370 is 7347802.

It is not an unprimeable number, because it can be changed into a prime (20874379) 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, 94774 + ... + 94993.

It is an arithmetic number, because the mean of its divisors is an integer number (2561868).

Almost surely, 2^20874370 is an apocalyptic number.

20874370 is a deficient number, since it is larger than the sum of its proper divisors (20115518).

20874370 is a wasteful number, since it uses less digits than its factorization.

20874370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189785.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 20874370 is about 4568.8477759715. The cubic root of 20874370 is about 275.3411523646.

The spelling of 20874370 in words is "twenty million, eight hundred seventy-four thousand, three hundred seventy".