670367920 has 20 divisors (see below), whose sum is σ = 1558605600. Its totient is φ = 268147136.

The previous prime is 670367911. The next prime is 670367927. The reversal of 670367920 is 29763076.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (670367927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4189720 + ... + 4189879.

It is an arithmetic number, because the mean of its divisors is an integer number (77930280).

Almost surely, 2^670367920 is an apocalyptic number.

It is an amenable number.

670367920 is an abundant number, since it is smaller than the sum of its proper divisors (888237680).

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

670367920 is a wasteful number, since it uses less digits than its factorization.

670367920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8379612 (or 8379606 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 670367920 is about 25891.4642305143. The cubic root of 670367920 is about 875.1941533788.

The spelling of 670367920 in words is "six hundred seventy million, three hundred sixty-seven thousand, nine hundred twenty".