20888674 has 4 divisors (see below), whose sum is σ = 31333014. Its totient is φ = 10444336.

The previous prime is 20888663. The next prime is 20888677. The reversal of 20888674 is 47688802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17850625 + 3038049 = 4225^2 + 1743^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20888674.

It is not an unprimeable number, because it can be changed into a prime (20888677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5222167 + ... + 5222170.

Almost surely, 2^20888674 is an apocalyptic number.

20888674 is a deficient number, since it is larger than the sum of its proper divisors (10444340).

20888674 is a wasteful number, since it uses less digits than its factorization.

20888674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444339.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 20888674 is about 4570.4128916324. The cubic root of 20888674 is about 275.4040298005.

The spelling of 20888674 in words is "twenty million, eight hundred eighty-eight thousand, six hundred seventy-four".