42392179 has 2 divisors, whose sum is σ = 42392180. Its totient is φ = 42392178.

The previous prime is 42392117. The next prime is 42392263. The reversal of 42392179 is 97129324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42392179 - 2⁹ = 42391667 is a prime.

It is not a weakly prime, because it can be changed into another prime (42392279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21196089 + 21196090.

It is an arithmetic number, because the mean of its divisors is an integer number (21196090).

Almost surely, 2^42392179 is an apocalyptic number.

42392179 is a deficient number, since it is larger than the sum of its proper divisors (1).

42392179 is an equidigital number, since it uses as much as digits as its factorization.

42392179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 42392179 is about 6510.9276604797. The cubic root of 42392179 is about 348.6812386543.

The spelling of 42392179 in words is "forty-two million, three hundred ninety-two thousand, one hundred seventy-nine".