20464012 has 12 divisors (see below), whose sum is σ = 35857080. Its totient is φ = 10219136.

The previous prime is 20464009. The next prime is 20464027. The reversal of 20464012 is 21046402.

It is a super-2 number, since 2×20464012² = 837551574272288, which contains 22 as substring.

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, 963 + ... + 6469.

It is an arithmetic number, because the mean of its divisors is an integer number (2988090).

Almost surely, 2^20464012 is an apocalyptic number.

It is an amenable number.

20464012 is a deficient number, since it is larger than the sum of its proper divisors (15393068).

20464012 is a wasteful number, since it uses less digits than its factorization.

20464012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440 (or 6438 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20464012 is about 4523.7166135822. The cubic root of 20464012 is about 273.5249373726.

The spelling of 20464012 in words is "twenty million, four hundred sixty-four thousand, twelve".