20522468 has 36 divisors (see below), whose sum is σ = 39171972. Its totient is φ = 9400320.

The previous prime is 20522449. The next prime is 20522477. The reversal of 20522468 is 86422502.

It can be written as a sum of positive squares in 6 ways, for example, as 879844 + 19642624 = 938^2 + 4432^2 .

It is a super-2 number, since 2×20522468² = 842343385622048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20522468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47180 + ... + 47612.

Almost surely, 2^20522468 is an apocalyptic number.

It is an amenable number.

20522468 is a deficient number, since it is larger than the sum of its proper divisors (18649504).

20522468 is a wasteful number, since it uses less digits than its factorization.

20522468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 20522468 is about 4530.1730651268. The cubic root of 20522468 is about 273.7851335543.

The spelling of 20522468 in words is "twenty million, five hundred twenty-two thousand, four hundred sixty-eight".