40685412 has 24 divisors (see below), whose sum is σ = 95857216. Its totient is φ = 13429728.

The previous prime is 40685401. The next prime is 40685431. The reversal of 40685412 is 21458604.

It is a self number, because there is not a number n which added to its sum of digits gives 40685412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15223 + ... + 17694.

Almost surely, 2^40685412 is an apocalyptic number.

It is an amenable number.

40685412 is an abundant number, since it is smaller than the sum of its proper divisors (55171804).

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

40685412 is a wasteful number, since it uses less digits than its factorization.

40685412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33027 (or 33025 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 40685412 is about 6378.5117386425. The cubic root of 40685412 is about 343.9375337270.

The spelling of 40685412 in words is "forty million, six hundred eighty-five thousand, four hundred twelve".