20089456 has 10 divisors (see below), whose sum is σ = 38923352. Its totient is φ = 10044720.

The previous prime is 20089451. The next prime is 20089477. The reversal of 20089456 is 65498002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20089451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627780 + ... + 627811.

Almost surely, 2^20089456 is an apocalyptic number.

It is an amenable number.

20089456 is a deficient number, since it is larger than the sum of its proper divisors (18833896).

20089456 is a wasteful number, since it uses less digits than its factorization.

20089456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255599 (or 1255593 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 20089456 is about 4482.1262811304. The cubic root of 20089456 is about 271.8458613418.

The spelling of 20089456 in words is "twenty million, eighty-nine thousand, four hundred fifty-six".