670047220 has 24 divisors (see below), whose sum is σ = 1409940000. Its totient is φ = 267477792.

The previous prime is 670047167. The next prime is 670047221. The reversal of 670047220 is 22740076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670047221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23590 + ... + 43549.

It is an arithmetic number, because the mean of its divisors is an integer number (58747500).

Almost surely, 2^670047220 is an apocalyptic number.

It is an amenable number.

670047220 is an abundant number, since it is smaller than the sum of its proper divisors (739892780).

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

670047220 is a wasteful number, since it uses less digits than its factorization.

670047220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67647 (or 67645 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 670047220 is about 25885.2703288955. The cubic root of 670047220 is about 875.0545685696.

Adding to 670047220 its reverse (22740076), we get a palindrome (692787296).

The spelling of 670047220 in words is "six hundred seventy million, forty-seven thousand, two hundred twenty".