670190720 has 32 divisors (see below), whose sum is σ = 1602176220. Its totient is φ = 268076032.

The previous prime is 670190707. The next prime is 670190747. The reversal of 670190720 is 27091076.

It can be written as a sum of positive squares in 2 ways, for example, as 656589376 + 13601344 = 25624^2 + 3688^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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, 522947 + ... + 524226.

Almost surely, 2^670190720 is an apocalyptic number.

It is an amenable number.

670190720 is an abundant number, since it is smaller than the sum of its proper divisors (931985500).

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

670190720 is a wasteful number, since it uses less digits than its factorization.

670190720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047192 (or 1047180 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 670190720 is about 25888.0420271600. The cubic root of 670190720 is about 875.1170325093.

The spelling of 670190720 in words is "six hundred seventy million, one hundred ninety thousand, seven hundred twenty".