20738874 has 16 divisors (see below), whose sum is σ = 44668512. Its totient is φ = 6381168.

The previous prime is 20738849. The next prime is 20738903. The reversal of 20738874 is 47883702.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132864 + ... + 133019.

It is an arithmetic number, because the mean of its divisors is an integer number (2791782).

Almost surely, 2^20738874 is an apocalyptic number.

20738874 is an abundant number, since it is smaller than the sum of its proper divisors (23929638).

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

20738874 is a wasteful number, since it uses less digits than its factorization.

20738874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265901.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 20738874 is about 4553.9953886670. The cubic root of 20738874 is about 274.7441101756.

It can be divided in two parts, 20738 and 874, that added together give a palindrome (21612).

The spelling of 20738874 in words is "twenty million, seven hundred thirty-eight thousand, eight hundred seventy-four".