20944512 has 48 divisors (see below), whose sum is σ = 60273330. Its totient is φ = 6981120.

The previous prime is 20944489. The next prime is 20944541. The reversal of 20944512 is 21544902.

20944512 is a `hidden beast` number, since 209 + 4 + 451 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12787776 + 8156736 = 3576^2 + 2856^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7939 + ... + 10242.

Almost surely, 2^20944512 is an apocalyptic number.

It is an amenable number.

20944512 is an abundant number, since it is smaller than the sum of its proper divisors (39328818).

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

20944512 is a wasteful number, since it uses less digits than its factorization.

20944512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18201 (or 18186 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 20944512 is about 4576.5174532607. The cubic root of 20944512 is about 275.6492077709.

The spelling of 20944512 in words is "twenty million, nine hundred forty-four thousand, five hundred twelve".