20766484 has 12 divisors (see below), whose sum is σ = 36375808. Its totient is φ = 10373400.

The previous prime is 20766479. The next prime is 20766521. The reversal of 20766484 is 48466702.

It is a congruent number.

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, 4429 + ... + 7819.

Almost surely, 2^20766484 is an apocalyptic number.

It is an amenable number.

20766484 is a deficient number, since it is larger than the sum of its proper divisors (15609324).

20766484 is a wasteful number, since it uses less digits than its factorization.

20766484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 20766484 is about 4557.0257844344. The cubic root of 20766484 is about 274.8659798755.

The spelling of 20766484 in words is "twenty million, seven hundred sixty-six thousand, four hundred eighty-four".