20168874 has 24 divisors (see below), whose sum is σ = 47672352. Its totient is φ = 6111720.

The previous prime is 20168873. The next prime is 20168887. The reversal of 20168874 is 47886102.

It is not an unprimeable number, because it can be changed into a prime (20168873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50734 + ... + 51129.

It is an arithmetic number, because the mean of its divisors is an integer number (1986348).

Almost surely, 2^20168874 is an apocalyptic number.

20168874 is an abundant number, since it is smaller than the sum of its proper divisors (27503478).

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

20168874 is a wasteful number, since it uses less digits than its factorization.

20168874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101882 (or 101879 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 20168874 is about 4490.9769538487. The cubic root of 20168874 is about 272.2036123209.

The spelling of 20168874 in words is "twenty million, one hundred sixty-eight thousand, eight hundred seventy-four".