40765518 has 20 divisors (see below), whose sum is σ = 91345320. Its totient is φ = 13588452.

The previous prime is 40765489. The next prime is 40765523. The reversal of 40765518 is 81556704.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 125658 + ... + 125981.

It is an arithmetic number, because the mean of its divisors is an integer number (4567266).

Almost surely, 2^40765518 is an apocalyptic number.

40765518 is an abundant number, since it is smaller than the sum of its proper divisors (50579802).

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

40765518 is a wasteful number, since it uses less digits than its factorization.

40765518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251653 (or 251644 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 40765518 is about 6384.7880152751. The cubic root of 40765518 is about 344.1631133335.

The spelling of 40765518 in words is "forty million, seven hundred sixty-five thousand, five hundred eighteen".