20392938 has 32 divisors (see below), whose sum is σ = 45534720. Its totient is φ = 6765120.

The previous prime is 20392913. The next prime is 20392943. The reversal of 20392938 is 83929302.

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, 12231 + ... + 13797.

It is an arithmetic number, because the mean of its divisors is an integer number (1422960).

Almost surely, 2^20392938 is an apocalyptic number.

20392938 is an abundant number, since it is smaller than the sum of its proper divisors (25141782).

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

20392938 is a wasteful number, since it uses less digits than its factorization.

20392938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 20392938 is about 4515.8540720444. The cubic root of 20392938 is about 273.2079082820.

The spelling of 20392938 in words is "twenty million, three hundred ninety-two thousand, nine hundred thirty-eight".