20885674 has 8 divisors (see below), whose sum is σ = 32977440. Its totient is φ = 9893196.

The previous prime is 20885663. The next prime is 20885701. The reversal of 20885674 is 47658802.

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

It is a super-2 number, since 2×20885674² = 872422756868552, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274774 + ... + 274849.

It is an arithmetic number, because the mean of its divisors is an integer number (4122180).

Almost surely, 2^20885674 is an apocalyptic number.

20885674 is a deficient number, since it is larger than the sum of its proper divisors (12091766).

20885674 is a wasteful number, since it uses less digits than its factorization.

20885674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549644.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 20885674 is about 4570.0846819288. The cubic root of 20885674 is about 275.3908447981.

The spelling of 20885674 in words is "twenty million, eight hundred eighty-five thousand, six hundred seventy-four".