20294472 has 32 divisors (see below), whose sum is σ = 55349280. Its totient is φ = 6149760.

The previous prime is 20294471. The next prime is 20294479. The reversal of 20294472 is 27449202.

It is not an unprimeable number, because it can be changed into a prime (20294471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38173 + ... + 38700.

It is an arithmetic number, because the mean of its divisors is an integer number (1729665).

Almost surely, 2^20294472 is an apocalyptic number.

20294472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20294472 is an abundant number, since it is smaller than the sum of its proper divisors (35054808).

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

20294472 is a wasteful number, since it uses less digits than its factorization.

20294472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76893 (or 76889 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20294472 is about 4504.9386233333. The cubic root of 20294472 is about 272.7674763358.

It can be divided in two parts, 20 and 294472, that added together give a palindrome (294492).

The spelling of 20294472 in words is "twenty million, two hundred ninety-four thousand, four hundred seventy-two".