20312338 has 8 divisors (see below), whose sum is σ = 30559932. Its totient is φ = 10125696.

The previous prime is 20312309. The next prime is 20312351. The reversal of 20312338 is 83321302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17665209 + 2647129 = 4203^2 + 1627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14395 + ... + 15742.

Almost surely, 2^20312338 is an apocalyptic number.

20312338 is a deficient number, since it is larger than the sum of its proper divisors (10247594).

20312338 is a wasteful number, since it uses less digits than its factorization.

20312338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30476.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20312338 is about 4506.9211220078. The cubic root of 20312338 is about 272.8474954068.

The spelling of 20312338 in words is "twenty million, three hundred twelve thousand, three hundred thirty-eight".