40879636 has 24 divisors (see below), whose sum is σ = 81962496. Its totient is φ = 17476320.

The previous prime is 40879609. The next prime is 40879673. The reversal of 40879636 is 63697804.

It is a happy number.

40879636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40879636² = 3342289278984992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40879592 and 40879601.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11325 + ... + 14491.

It is an arithmetic number, because the mean of its divisors is an integer number (3415104).

Almost surely, 2^40879636 is an apocalyptic number.

It is an amenable number.

40879636 is an abundant number, since it is smaller than the sum of its proper divisors (41082860).

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

40879636 is a wasteful number, since it uses less digits than its factorization.

40879636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639 (or 3637 counting only the distinct ones).

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

The square root of 40879636 is about 6393.7184798832. The cubic root of 40879636 is about 344.4839614121.

The spelling of 40879636 in words is "forty million, eight hundred seventy-nine thousand, six hundred thirty-six".