20474875 has 32 divisors (see below), whose sum is σ = 27743040. Its totient is φ = 15033600.

The previous prime is 20474873. The next prime is 20474897. The reversal of 20474875 is 57847402.

It is not a de Polignac number, because 20474875 - 2¹ = 20474873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (20474873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87759 + ... + 87991.

It is an arithmetic number, because the mean of its divisors is an integer number (866970).

Almost surely, 2^20474875 is an apocalyptic number.

20474875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20474875 is a deficient number, since it is larger than the sum of its proper divisors (7268165).

20474875 is a wasteful number, since it uses less digits than its factorization.

20474875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 20474875 is about 4524.9171263129. The cubic root of 20474875 is about 273.5733276197.

The spelling of 20474875 in words is "twenty million, four hundred seventy-four thousand, eight hundred seventy-five".