20464036 has 12 divisors (see below), whose sum is σ = 36399580. Its totient is φ = 10064160.

The previous prime is 20464027. The next prime is 20464057. The reversal of 20464036 is 63046402.

It can be written as a sum of positive squares in 2 ways, for example, as 1454436 + 19009600 = 1206^2 + 4360^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20464036.

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, 41691 + ... + 42178.

Almost surely, 2^20464036 is an apocalyptic number.

It is an amenable number.

20464036 is a deficient number, since it is larger than the sum of its proper divisors (15935544).

20464036 is a wasteful number, since it uses less digits than its factorization.

20464036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83934 (or 83932 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 20464036 is about 4523.7192662675. The cubic root of 20464036 is about 273.5250443017.

The spelling of 20464036 in words is "twenty million, four hundred sixty-four thousand, thirty-six".