20252470 has 32 divisors (see below), whose sum is σ = 41832000. Its totient is φ = 6915456.

The previous prime is 20252459. The next prime is 20252473. The reversal of 20252470 is 7425202.

It is a super-2 number, since 2×20252470² = 820325082201800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24016 + ... + 24844.

It is an arithmetic number, because the mean of its divisors is an integer number (1307250).

Almost surely, 2^20252470 is an apocalyptic number.

20252470 is an abundant number, since it is smaller than the sum of its proper divisors (21579530).

20252470 is a wasteful number, since it uses less digits than its factorization.

20252470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 20252470 is about 4500.2744360761. The cubic root of 20252470 is about 272.5791706665.

Adding to 20252470 its reverse (7425202), we get a palindrome (27677672).

The spelling of 20252470 in words is "twenty million, two hundred fifty-two thousand, four hundred seventy".