670423900 has 36 divisors (see below), whose sum is σ = 1540401408. Its totient is φ = 252394240.

The previous prime is 670423889. The next prime is 670423927. The reversal of 670423900 is 9324076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195484 + ... + 198883.

It is an arithmetic number, because the mean of its divisors is an integer number (42788928).

Almost surely, 2^670423900 is an apocalyptic number.

It is an amenable number.

670423900 is an abundant number, since it is smaller than the sum of its proper divisors (869977508).

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

670423900 is a wasteful number, since it uses less digits than its factorization.

670423900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394398 (or 394391 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 670423900 is about 25892.5452592054. The cubic root of 670423900 is about 875.2185141333.

Adding to 670423900 its reverse (9324076), we get a palindrome (679747976).

The spelling of 670423900 in words is "six hundred seventy million, four hundred twenty-three thousand, nine hundred".