20338670 has 32 divisors (see below), whose sum is σ = 41679360. Its totient is φ = 7073440.

The previous prime is 20338663. The next prime is 20338709. The reversal of 20338670 is 7683302.

It is a super-2 number, since 2×20338670² = 827322994737800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (1302480).

Almost surely, 2^20338670 is an apocalyptic number.

20338670 is an abundant number, since it is smaller than the sum of its proper divisors (21340690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20338670 is a wasteful number, since it uses less digits than its factorization.

20338670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20338670 is about 4509.8414606281. The cubic root of 20338670 is about 272.9653468965.

The spelling of 20338670 in words is "twenty million, three hundred thirty-eight thousand, six hundred seventy".