20373956 has 12 divisors (see below), whose sum is σ = 37751868. Its totient is φ = 9587712.

The previous prime is 20373943. The next prime is 20373967. The reversal of 20373956 is 65937302.

It can be written as a sum of positive squares in 2 ways, for example, as 16532356 + 3841600 = 4066^2 + 1960^2 .

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, 149741 + ... + 149876.

It is an arithmetic number, because the mean of its divisors is an integer number (3145989).

Almost surely, 2^20373956 is an apocalyptic number.

It is an amenable number.

20373956 is a deficient number, since it is larger than the sum of its proper divisors (17377912).

20373956 is a wasteful number, since it uses less digits than its factorization.

20373956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299638 (or 299636 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 20373956 is about 4513.7518762112. The cubic root of 20373956 is about 273.1231135290.

The spelling of 20373956 in words is "twenty million, three hundred seventy-three thousand, nine hundred fifty-six".