20764612 has 12 divisors (see below), whose sum is σ = 39641616. Its totient is φ = 9438440.

The previous prime is 20764591. The next prime is 20764619. The reversal of 20764612 is 21646702.

It is a super-2 number, since 2×20764612² = 862338223021088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20764619) 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, 235918 + ... + 236005.

It is an arithmetic number, because the mean of its divisors is an integer number (3303468).

Almost surely, 2^20764612 is an apocalyptic number.

20764612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20764612 is a deficient number, since it is larger than the sum of its proper divisors (18877004).

20764612 is a wasteful number, since it uses less digits than its factorization.

20764612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471938 (or 471936 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20764612 is about 4556.8203826791. The cubic root of 20764612 is about 274.8577203394.

The spelling of 20764612 in words is "twenty million, seven hundred sixty-four thousand, six hundred twelve".