407678412 has 12 divisors (see below), whose sum is σ = 951249656. Its totient is φ = 135892800.

The previous prime is 407678389. The next prime is 407678449. The reversal of 407678412 is 214876704.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×407678412² = 332403375221683488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16986589 + ... + 16986612.

Almost surely, 2^407678412 is an apocalyptic number.

It is an amenable number.

407678412 is an abundant number, since it is smaller than the sum of its proper divisors (543571244).

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

407678412 is a wasteful number, since it uses less digits than its factorization.

407678412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33973208 (or 33973206 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 407678412 is about 20191.0478182783. The cubic root of 407678412 is about 741.4910355551.

The spelling of 407678412 in words is "four hundred seven million, six hundred seventy-eight thousand, four hundred twelve".