40685612 has 48 divisors (see below), whose sum is σ = 83825280. Its totient is φ = 17078400.

The previous prime is 40685599. The next prime is 40685629. The reversal of 40685612 is 21658604.

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 15 ways as a sum of consecutive naturals, for example, 33683 + ... + 34869.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^40685612 is an apocalyptic number.

It is an amenable number.

40685612 is an abundant number, since it is smaller than the sum of its proper divisors (43139668).

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

40685612 is a wasteful number, since it uses less digits than its factorization.

40685612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 40685612 is about 6378.5274162615. The cubic root of 40685612 is about 343.9380972983.

The spelling of 40685612 in words is "forty million, six hundred eighty-five thousand, six hundred twelve".