20038765 has 8 divisors (see below), whose sum is σ = 24173568. Its totient is φ = 15946320.

The previous prime is 20038747. The next prime is 20038771. The reversal of 20038765 is 56783002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20038765 - 2⁷ = 20038637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9537 + ... + 11446.

It is an arithmetic number, because the mean of its divisors is an integer number (3021696).

Almost surely, 2^20038765 is an apocalyptic number.

It is an amenable number.

20038765 is a deficient number, since it is larger than the sum of its proper divisors (4134803).

20038765 is a wasteful number, since it uses less digits than its factorization.

20038765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21179.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20038765 is about 4476.4679156674. The cubic root of 20038765 is about 271.6170224733.

The spelling of 20038765 in words is "twenty million, thirty-eight thousand, seven hundred sixty-five".