40358979 has 10 divisors (see below), whose sum is σ = 60289460. Its totient is φ = 26905932.

The previous prime is 40358977. The next prime is 40359001. The reversal of 40358979 is 97985304.

40358979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40358979 - 2¹ = 40358977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40358977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 249049 + ... + 249210.

It is an arithmetic number, because the mean of its divisors is an integer number (6028946).

Almost surely, 2^40358979 is an apocalyptic number.

40358979 is a deficient number, since it is larger than the sum of its proper divisors (19930481).

40358979 is an equidigital number, since it uses as much as digits as its factorization.

40358979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498271 (or 498262 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 40358979 is about 6352.8717128555. The cubic root of 40358979 is about 343.0152197402.

The spelling of 40358979 in words is "forty million, three hundred fifty-eight thousand, nine hundred seventy-nine".