670440004 has 72 divisors (see below), whose sum is σ = 1365383040. Its totient is φ = 285550272.

The previous prime is 670439977. The next prime is 670440011. The reversal of 670440004 is 400044076.

It is a happy number.

670440004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1826629 + ... + 1826995.

Almost surely, 2^670440004 is an apocalyptic number.

It is an amenable number.

670440004 is an abundant number, since it is smaller than the sum of its proper divisors (694943036).

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

670440004 is a wasteful number, since it uses less digits than its factorization.

670440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 444 counting only the distinct ones).

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

The square root of 670440004 is about 25892.8562348768. The cubic root of 670440004 is about 875.2255218420.

The spelling of 670440004 in words is "six hundred seventy million, four hundred forty thousand, four".