20379375 has 30 divisors (see below), whose sum is σ = 36794472. Its totient is φ = 10866000.

The previous prime is 20379371. The next prime is 20379389. The reversal of 20379375 is 57397302.

It is a happy number.

It is not a de Polignac number, because 20379375 - 2² = 20379371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20379371) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3814 + ... + 7436.

Almost surely, 2^20379375 is an apocalyptic number.

20379375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20379375 is a deficient number, since it is larger than the sum of its proper divisors (16415097).

20379375 is an equidigital number, since it uses as much as digits as its factorization.

20379375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 20379375 is about 4514.3521129837. The cubic root of 20379375 is about 273.1473261880.

The spelling of 20379375 in words is "twenty million, three hundred seventy-nine thousand, three hundred seventy-five".