20339476 has 6 divisors (see below), whose sum is σ = 35594090. Its totient is φ = 10169736.

The previous prime is 20339467. The next prime is 20339489. The reversal of 20339476 is 67493302.

It can be written as a sum of positive squares in only one way, i.e., 10890000 + 9449476 = 3300^2 + 3074^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2542431 + ... + 2542438.

Almost surely, 2^20339476 is an apocalyptic number.

It is an amenable number.

20339476 is a deficient number, since it is larger than the sum of its proper divisors (15254614).

20339476 is a wasteful number, since it uses less digits than its factorization.

20339476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084873 (or 5084871 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 20339476 is about 4509.9308198685. The cubic root of 20339476 is about 272.9689526250.

The spelling of 20339476 in words is "twenty million, three hundred thirty-nine thousand, four hundred seventy-six".