670394260 has 24 divisors (see below), whose sum is σ = 1408485960. Its totient is φ = 268032384.

The previous prime is 670394243. The next prime is 670394261. The reversal of 670394260 is 62493076.

It can be written as a sum of positive squares in 4 ways, for example, as 33942276 + 636451984 = 5826^2 + 25228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670394261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44586 + ... + 57694.

It is an arithmetic number, because the mean of its divisors is an integer number (58686915).

Almost surely, 2^670394260 is an apocalyptic number.

It is an amenable number.

670394260 is an abundant number, since it is smaller than the sum of its proper divisors (738091700).

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

670394260 is a wasteful number, since it uses less digits than its factorization.

670394260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15675 (or 15673 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 670394260 is about 25891.9728873641. The cubic root of 670394260 is about 875.2056158963.

The spelling of 670394260 in words is "six hundred seventy million, three hundred ninety-four thousand, two hundred sixty".