20303379 has 14 divisors (see below), whose sum is σ = 30442236. Its totient is φ = 13535100.

The previous prime is 20303351. The next prime is 20303431. The reversal of 20303379 is 97330302.

It is not a de Polignac number, because 20303379 - 2⁵ = 20303347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20303329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 13197 + ... + 14654.

Almost surely, 2^20303379 is an apocalyptic number.

20303379 is a deficient number, since it is larger than the sum of its proper divisors (10138857).

20303379 is an frugal number, since it uses more digits than its factorization.

20303379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27869 (or 27854 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 27.

The square root of 20303379 is about 4505.9270966140. The cubic root of 20303379 is about 272.8073752890.

The spelling of 20303379 in words is "twenty million, three hundred three thousand, three hundred seventy-nine".