20379401 has 16 divisors (see below), whose sum is σ = 23946624. Its totient is φ = 16982784.

The previous prime is 20379389. The next prime is 20379421. The reversal of 20379401 is 10497302.

It is a de Polignac number, because none of the positive numbers 2^k-20379401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20379421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60305 + ... + 60641.

It is an arithmetic number, because the mean of its divisors is an integer number (1496664).

Almost surely, 2^20379401 is an apocalyptic number.

It is an amenable number.

20379401 is a deficient number, since it is larger than the sum of its proper divisors (3567223).

20379401 is a wasteful number, since it uses less digits than its factorization.

20379401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20379401 is about 4514.3549926872. The cubic root of 20379401 is about 273.1474423484.

The spelling of 20379401 in words is "twenty million, three hundred seventy-nine thousand, four hundred one".