20883874 has 12 divisors (see below), whose sum is σ = 34432902. Its totient is φ = 9492560.

The previous prime is 20883859. The next prime is 20883881. The reversal of 20883874 is 47838802.

It can be written as a sum of positive squares in only one way, i.e., 20638849 + 245025 = 4543^2 + 495^2 .

It is a super-2 number, since 2×20883874² = 872272386495752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42907 + ... + 43390.

Almost surely, 2^20883874 is an apocalyptic number.

20883874 is a deficient number, since it is larger than the sum of its proper divisors (13549028).

20883874 is a wasteful number, since it uses less digits than its factorization.

20883874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86321 (or 86310 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 20883874 is about 4569.8877447920. The cubic root of 20883874 is about 275.3829331907.

The spelling of 20883874 in words is "twenty million, eight hundred eighty-three thousand, eight hundred seventy-four".