40685860 has 24 divisors (see below), whose sum is σ = 85619520. Its totient is φ = 16240224.

The previous prime is 40685851. The next prime is 40685863. The reversal of 40685860 is 6858604.

It is not an unprimeable number, because it can be changed into a prime (40685863) by changing a digit.

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, 9081 + ... + 12799.

It is an arithmetic number, because the mean of its divisors is an integer number (3567480).

Almost surely, 2^40685860 is an apocalyptic number.

It is an amenable number.

40685860 is an abundant number, since it is smaller than the sum of its proper divisors (44933660).

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

40685860 is a wasteful number, since it uses less digits than its factorization.

40685860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275 (or 4273 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 40685860 is about 6378.5468564556. The cubic root of 40685860 is about 343.9387961242.

The spelling of 40685860 in words is "forty million, six hundred eighty-five thousand, eight hundred sixty".