20338312 has 16 divisors (see below), whose sum is σ = 39021840. Its totient is φ = 9932496.

The previous prime is 20338301. The next prime is 20338327. The reversal of 20338312 is 21383302.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29218 + ... + 29905.

It is an arithmetic number, because the mean of its divisors is an integer number (2438865).

Almost surely, 2^20338312 is an apocalyptic number.

It is an amenable number.

20338312 is a deficient number, since it is larger than the sum of its proper divisors (18683528).

20338312 is a wasteful number, since it uses less digits than its factorization.

20338312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59172 (or 59168 counting only the distinct ones).

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

The square root of 20338312 is about 4509.8017694795. The cubic root of 20338312 is about 272.9637453141.

The spelling of 20338312 in words is "twenty million, three hundred thirty-eight thousand, three hundred twelve".