40179079 has 2 divisors, whose sum is σ = 40179080. Its totient is φ = 40179078.

The previous prime is 40179043. The next prime is 40179089. The reversal of 40179079 is 97097104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40179079 is a prime.

It is a super-2 number, since 2×40179079² = 3228716778576482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40179089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20089539 + 20089540.

It is an arithmetic number, because the mean of its divisors is an integer number (20089540).

Almost surely, 2^40179079 is an apocalyptic number.

40179079 is a deficient number, since it is larger than the sum of its proper divisors (1).

40179079 is an equidigital number, since it uses as much as digits as its factorization.

40179079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 40179079 is about 6338.6969481117. The cubic root of 40179079 is about 342.5047975601.

Subtracting from 40179079 its product of nonzero digits (15876), we obtain a triangular number (40163203 = T₈₉₆₂).

The spelling of 40179079 in words is "forty million, one hundred seventy-nine thousand, seventy-nine".