20179941 has 4 divisors (see below), whose sum is σ = 26906592. Its totient is φ = 13453292.

The previous prime is 20179937. The next prime is 20179961. The reversal of 20179941 is 14997102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20179941 - 2² = 20179937 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20179921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3363321 + ... + 3363326.

It is an arithmetic number, because the mean of its divisors is an integer number (6726648).

Almost surely, 2^20179941 is an apocalyptic number.

It is an amenable number.

20179941 is a deficient number, since it is larger than the sum of its proper divisors (6726651).

20179941 is an equidigital number, since it uses as much as digits as its factorization.

20179941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6726650.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 20179941 is about 4492.2089221228. The cubic root of 20179941 is about 272.2533907823.

The spelling of 20179941 in words is "twenty million, one hundred seventy-nine thousand, nine hundred forty-one".