40912686 has 24 divisors (see below), whose sum is σ = 88887240. Its totient is φ = 13600176.

The previous prime is 40912657. The next prime is 40912687. The reversal of 40912686 is 68621904.

It is a self number, because there is not a number n which added to its sum of digits gives 40912686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40912687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4081 + ... + 9923.

It is an arithmetic number, because the mean of its divisors is an integer number (3703635).

Almost surely, 2^40912686 is an apocalyptic number.

40912686 is an abundant number, since it is smaller than the sum of its proper divisors (47974554).

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

40912686 is a wasteful number, since it uses less digits than its factorization.

40912686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240 (or 6237 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 40912686 is about 6396.3025256784. The cubic root of 40912686 is about 344.5767715022.

The spelling of 40912686 in words is "forty million, nine hundred twelve thousand, six hundred eighty-six".