20894674 has 16 divisors (see below), whose sum is σ = 32549400. Its totient is φ = 10047744.

The previous prime is 20894663. The next prime is 20894681. The reversal of 20894674 is 47649802.

It can be written as a sum of positive squares in 4 ways, for example, as 15800625 + 5094049 = 3975^2 + 2257^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19012 + ... + 20080.

Almost surely, 2^20894674 is an apocalyptic number.

20894674 is a deficient number, since it is larger than the sum of its proper divisors (11654726).

20894674 is a wasteful number, since it uses less digits than its factorization.

20894674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 20894674 is about 4571.0692403419. The cubic root of 20894674 is about 275.4303960184.

The spelling of 20894674 in words is "twenty million, eight hundred ninety-four thousand, six hundred seventy-four".