40079136 has 24 divisors (see below), whose sum is σ = 105207984. Its totient is φ = 13359680.

The previous prime is 40079129. The next prime is 40079147. The reversal of 40079136 is 63197004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208650 + ... + 208841.

It is an arithmetic number, because the mean of its divisors is an integer number (4383666).

Almost surely, 2^40079136 is an apocalyptic number.

It is an amenable number.

40079136 is an abundant number, since it is smaller than the sum of its proper divisors (65128848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40079136 is a wasteful number, since it uses less digits than its factorization.

40079136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417504 (or 417496 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 40079136 is about 6330.8084791755. The cubic root of 40079136 is about 342.2205751937.

The spelling of 40079136 in words is "forty million, seventy-nine thousand, one hundred thirty-six".