20674684 has 12 divisors (see below), whose sum is σ = 36513400. Its totient is φ = 10242288.

The previous prime is 20674681. The next prime is 20674691. The reversal of 20674684 is 48647602.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674681) 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, 23274 + ... + 24145.

Almost surely, 2^20674684 is an apocalyptic number.

It is an amenable number.

20674684 is a deficient number, since it is larger than the sum of its proper divisors (15838716).

20674684 is a wasteful number, since it uses less digits than its factorization.

20674684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47532 (or 47530 counting only the distinct ones).

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

The square root of 20674684 is about 4546.9422692618. The cubic root of 20674684 is about 274.4603588176.

The spelling of 20674684 in words is "twenty million, six hundred seventy-four thousand, six hundred eighty-four".