20124379 has 16 divisors (see below), whose sum is σ = 24261120. Its totient is φ = 16466560.

The previous prime is 20124373. The next prime is 20124389. The reversal of 20124379 is 97342102.

It is not a de Polignac number, because 20124379 - 2³ = 20124371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20124371) 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 15 ways as a sum of consecutive naturals, for example, 1962 + ... + 6640.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 2^20124379 is an apocalyptic number.

20124379 is a deficient number, since it is larger than the sum of its proper divisors (4136741).

20124379 is a wasteful number, since it uses less digits than its factorization.

20124379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20124379 is about 4486.0203967436. The cubic root of 20124379 is about 272.0032934650.

It can be divided in two parts, 20124 and 379, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20124379 in words is "twenty million, one hundred twenty-four thousand, three hundred seventy-nine".