20736652 has 12 divisors (see below), whose sum is σ = 37174536. Its totient is φ = 10115360.

The previous prime is 20736647. The next prime is 20736659. The reversal of 20736652 is 25663702.

It is not an unprimeable number, because it can be changed into a prime (20736659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63058 + ... + 63385.

It is an arithmetic number, because the mean of its divisors is an integer number (3097878).

Almost surely, 2^20736652 is an apocalyptic number.

It is an amenable number.

20736652 is a deficient number, since it is larger than the sum of its proper divisors (16437884).

20736652 is a wasteful number, since it uses less digits than its factorization.

20736652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126488 (or 126486 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 20736652 is about 4553.7514205323. The cubic root of 20736652 is about 274.7342976336.

The spelling of 20736652 in words is "twenty million, seven hundred thirty-six thousand, six hundred fifty-two".