20264356 has 12 divisors (see below), whose sum is σ = 40528768. Its totient is φ = 8684712.

The previous prime is 20264347. The next prime is 20264371. The reversal of 20264356 is 65346202.

It is a happy number.

20264356 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 723727 = 20264356 / (2 + 0 + 2 + 6 + 4 + 3 + 5 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361836 + ... + 361891.

Almost surely, 2^20264356 is an apocalyptic number.

It is an amenable number.

20264356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20264356 is a wasteful number, since it uses less digits than its factorization.

20264356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723738 (or 723736 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 20264356 is about 4501.5948285024. The cubic root of 20264356 is about 272.6324850262.

The spelling of 20264356 in words is "twenty million, two hundred sixty-four thousand, three hundred fifty-six".