40365980 has 12 divisors (see below), whose sum is σ = 84768600. Its totient is φ = 16146384.

The previous prime is 40365961. The next prime is 40366031. The reversal of 40365980 is 8956304.

It is a self number, because there is not a number n which added to its sum of digits gives 40365980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009130 + ... + 1009169.

It is an arithmetic number, because the mean of its divisors is an integer number (7064050).

Almost surely, 2^40365980 is an apocalyptic number.

It is an amenable number.

40365980 is an abundant number, since it is smaller than the sum of its proper divisors (44402620).

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

40365980 is a wasteful number, since it uses less digits than its factorization.

40365980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018308 (or 2018306 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40365980 is about 6353.4226996163. The cubic root of 40365980 is about 343.0350526726.

The spelling of 40365980 in words is "forty million, three hundred sixty-five thousand, nine hundred eighty".