20713038 has 32 divisors (see below), whose sum is σ = 44595360. Its totient is φ = 6389760.

The previous prime is 20713019. The next prime is 20713039. The reversal of 20713038 is 83031702.

It is a junction number, because it is equal to n+sod(n) for n = 20712999 and 20713017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20713039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4558 + ... + 7886.

It is an arithmetic number, because the mean of its divisors is an integer number (1393605).

Almost surely, 2^20713038 is an apocalyptic number.

20713038 is an abundant number, since it is smaller than the sum of its proper divisors (23882322).

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

20713038 is a wasteful number, since it uses less digits than its factorization.

20713038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20713038 is about 4551.1578746512. The cubic root of 20713038 is about 274.6299728555.

The spelling of 20713038 in words is "twenty million, seven hundred thirteen thousand, thirty-eight".