20038716 has 72 divisors (see below), whose sum is σ = 54250560. Its totient is φ = 6214656.

The previous prime is 20038687. The next prime is 20038723. The reversal of 20038716 is 61783002.

It is a self number, because there is not a number n which added to its sum of digits gives 20038716.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 83725 + ... + 83963.

It is an arithmetic number, because the mean of its divisors is an integer number (753480).

Almost surely, 2^20038716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20038716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27125280).

20038716 is an abundant number, since it is smaller than the sum of its proper divisors (34211844).

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

20038716 is a wasteful number, since it uses less digits than its factorization.

20038716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20038716 is about 4476.4624425991. The cubic root of 20038716 is about 271.6168010817.

The spelling of 20038716 in words is "twenty million, thirty-eight thousand, seven hundred sixteen".