40034979 has 24 divisors (see below), whose sum is σ = 60889920. Its totient is φ = 26280936.

The previous prime is 40034963. The next prime is 40034987. The reversal of 40034979 is 97943004.

It is not a de Polignac number, because 40034979 - 2⁴ = 40034963 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40034179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15052 + ... + 17510.

It is an arithmetic number, because the mean of its divisors is an integer number (2537080).

Almost surely, 2^40034979 is an apocalyptic number.

40034979 is a deficient number, since it is larger than the sum of its proper divisors (20854941).

40034979 is an equidigital number, since it uses as much as digits as its factorization.

40034979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 40034979 is about 6327.3200488042. The cubic root of 40034979 is about 342.0948490387.

The spelling of 40034979 in words is "forty million, thirty-four thousand, nine hundred seventy-nine".