40680456 has 32 divisors (see below), whose sum is σ = 107684640. Its totient is φ = 12762368.

The previous prime is 40680449. The next prime is 40680461. The reversal of 40680456 is 65408604.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 49446 + ... + 50261.

It is an arithmetic number, because the mean of its divisors is an integer number (3365145).

Almost surely, 2^40680456 is an apocalyptic number.

It is an amenable number.

40680456 is an abundant number, since it is smaller than the sum of its proper divisors (67004184).

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

40680456 is a wasteful number, since it uses less digits than its factorization.

40680456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99733 (or 99729 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40680456 is about 6378.1232349336. The cubic root of 40680456 is about 343.9235678397.

The spelling of 40680456 in words is "forty million, six hundred eighty thousand, four hundred fifty-six".