670400404 has 12 divisors (see below), whose sum is σ = 1173977728. Its totient is φ = 334978200.

The previous prime is 670400371. The next prime is 670400417. The reversal of 670400404 is 404004076.

It is a happy number.

It is a congruent number.

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, 48612 + ... + 60859.

Almost surely, 2^670400404 is an apocalyptic number.

It is an amenable number.

670400404 is a deficient number, since it is larger than the sum of its proper divisors (503577324).

670400404 is a wasteful number, since it uses less digits than its factorization.

670400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111006 (or 111004 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 670400404 is about 25892.0915339028. The cubic root of 670400404 is about 875.2082895702.

The spelling of 670400404 in words is "six hundred seventy million, four hundred thousand, four hundred four".