20112974 has 16 divisors (see below), whose sum is σ = 34539648. Its totient is φ = 8604792.

The previous prime is 20112973. The next prime is 20112997. The reversal of 20112974 is 47921102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11549 + ... + 13175.

It is an arithmetic number, because the mean of its divisors is an integer number (2158728).

Almost surely, 2^20112974 is an apocalyptic number.

20112974 is a deficient number, since it is larger than the sum of its proper divisors (14426674).

20112974 is a wasteful number, since it uses less digits than its factorization.

20112974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 20112974 is about 4484.7490453759. The cubic root of 20112974 is about 271.9519000153.

The spelling of 20112974 in words is "twenty million, one hundred twelve thousand, nine hundred seventy-four".