20730874 has 8 divisors (see below), whose sum is σ = 31147488. Its totient is φ = 10348380.

The previous prime is 20730869. The next prime is 20730887. The reversal of 20730874 is 47803702.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6952 + ... + 9475.

It is an arithmetic number, because the mean of its divisors is an integer number (3893436).

Almost surely, 2^20730874 is an apocalyptic number.

20730874 is a deficient number, since it is larger than the sum of its proper divisors (10416614).

20730874 is a wasteful number, since it uses less digits than its factorization.

20730874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17060.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 20730874 is about 4553.1169543512. The cubic root of 20730874 is about 274.7087782098.

The spelling of 20730874 in words is "twenty million, seven hundred thirty thousand, eight hundred seventy-four".