20102379 has 8 divisors (see below), whose sum is σ = 29239872. Its totient is φ = 12183240.

The previous prime is 20102321. The next prime is 20102389. The reversal of 20102379 is 97320102.

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

It is not a de Polignac number, because 20102379 - 2²³ = 11713771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20102309) 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, 304549 + ... + 304614.

It is an arithmetic number, because the mean of its divisors is an integer number (3654984).

Almost surely, 2^20102379 is an apocalyptic number.

20102379 is a deficient number, since it is larger than the sum of its proper divisors (9137493).

20102379 is a wasteful number, since it uses less digits than its factorization.

20102379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609177.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20102379 is about 4483.5676642602. The cubic root of 20102379 is about 271.9041391941.

It can be divided in two parts, 201023 and 79, that added together give a palindrome (201102).

The spelling of 20102379 in words is "twenty million, one hundred two thousand, three hundred seventy-nine".