20674748 has 6 divisors (see below), whose sum is σ = 36180816. Its totient is φ = 10337372.

The previous prime is 20674733. The next prime is 20674751. The reversal of 20674748 is 84747602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2584340 + ... + 2584347.

It is an arithmetic number, because the mean of its divisors is an integer number (6030136).

Almost surely, 2^20674748 is an apocalyptic number.

It is an amenable number.

20674748 is a deficient number, since it is larger than the sum of its proper divisors (15506068).

20674748 is a wasteful number, since it uses less digits than its factorization.

20674748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168691 (or 5168689 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 20674748 is about 4546.9493069530. The cubic root of 20674748 is about 274.4606420214.

The spelling of 20674748 in words is "twenty million, six hundred seventy-four thousand, seven hundred forty-eight".