407704668 has 48 divisors (see below), whose sum is σ = 1097397504. Its totient is φ = 115395840.

The previous prime is 407704657. The next prime is 407704669. The reversal of 407704668 is 866407704.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407704669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13693 + ... + 31668.

It is an arithmetic number, because the mean of its divisors is an integer number (22862448).

Almost surely, 2^407704668 is an apocalyptic number.

It is an amenable number.

407704668 is an abundant number, since it is smaller than the sum of its proper divisors (689692836).

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

407704668 is a wasteful number, since it uses less digits than its factorization.

407704668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45482 (or 45480 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 407704668 is about 20191.6979969491. The cubic root of 407704668 is about 741.5069534699.

The spelling of 407704668 in words is "four hundred seven million, seven hundred four thousand, six hundred sixty-eight".