20938051 has 8 divisors (see below), whose sum is σ = 21859200. Its totient is φ = 20032320.

The previous prime is 20938039. The next prime is 20938061. The reversal of 20938051 is 15083902.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20938051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20938031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 6553.

It is an arithmetic number, because the mean of its divisors is an integer number (2732400).

Almost surely, 2^20938051 is an apocalyptic number.

20938051 is a deficient number, since it is larger than the sum of its proper divisors (921149).

20938051 is an equidigital number, since it uses as much as digits as its factorization.

20938051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 20938051 is about 4575.8115127265. The cubic root of 20938051 is about 275.6208606046.

The spelling of 20938051 in words is "twenty million, nine hundred thirty-eight thousand, fifty-one".