20139032 has 8 divisors (see below), whose sum is σ = 37760700. Its totient is φ = 10069512.

The previous prime is 20139019. The next prime is 20139109. The reversal of 20139032 is 23093102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a pancake number, because a pancake can be divided into 20139032 parts by 6346 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 20138995 and 20139013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258682 + ... + 1258697.

Almost surely, 2^20139032 is an apocalyptic number.

It is an amenable number.

20139032 is a deficient number, since it is larger than the sum of its proper divisors (17621668).

20139032 is a wasteful number, since it uses less digits than its factorization.

20139032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517385 (or 2517381 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20139032 is about 4487.6532842901. The cubic root of 20139032 is about 272.0692946288.

The spelling of 20139032 in words is "twenty million, one hundred thirty-nine thousand, thirty-two".