20384379 has 20 divisors (see below), whose sum is σ = 30579120. Its totient is φ = 13532400.

The previous prime is 20384363. The next prime is 20384381. The reversal of 20384379 is 97348302.

20384379 is a `hidden beast` number, since 203 + 84 + 379 = 666.

It is not a de Polignac number, because 20384379 - 2⁴ = 20384363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20384179) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28729 + ... + 29429.

It is an arithmetic number, because the mean of its divisors is an integer number (1528956).

Almost surely, 2^20384379 is an apocalyptic number.

20384379 is a deficient number, since it is larger than the sum of its proper divisors (10194741).

20384379 is an equidigital number, since it uses as much as digits as its factorization.

20384379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 20384379 is about 4514.9063113203. The cubic root of 20384379 is about 273.1696807722.

The spelling of 20384379 in words is "twenty million, three hundred eighty-four thousand, three hundred seventy-nine".