20243379 has 32 divisors (see below), whose sum is σ = 32417280. Its totient is φ = 11100672.

The previous prime is 20243357. The next prime is 20243383. The reversal of 20243379 is 97334202.

It is not a de Polignac number, because 20243379 - 2⁵ = 20243347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20243309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11794 + ... + 13400.

It is an arithmetic number, because the mean of its divisors is an integer number (1013040).

Almost surely, 2^20243379 is an apocalyptic number.

20243379 is a deficient number, since it is larger than the sum of its proper divisors (12173901).

20243379 is a wasteful number, since it uses less digits than its factorization.

20243379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 20243379 is about 4499.2642731896. The cubic root of 20243379 is about 272.5383791299.

The spelling of 20243379 in words is "twenty million, two hundred forty-three thousand, three hundred seventy-nine".