40494679 has 2 divisors, whose sum is σ = 40494680. Its totient is φ = 40494678.

The previous prime is 40494659. The next prime is 40494721. The reversal of 40494679 is 97649404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40494679 - 2⁷ = 40494551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40494659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20247339 + 20247340.

It is an arithmetic number, because the mean of its divisors is an integer number (20247340).

Almost surely, 2^40494679 is an apocalyptic number.

40494679 is a deficient number, since it is larger than the sum of its proper divisors (1).

40494679 is an equidigital number, since it uses as much as digits as its factorization.

40494679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 40494679 is about 6363.5429597041. The cubic root of 40494679 is about 343.3992325407.

The spelling of 40494679 in words is "forty million, four hundred ninety-four thousand, six hundred seventy-nine".