670617220 has 48 divisors (see below), whose sum is σ = 1733292288. Its totient is φ = 212238720.

The previous prime is 670617209. The next prime is 670617221. The reversal of 670617220 is 22716076.

It is not an unprimeable number, because it can be changed into a prime (670617221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182416 + ... + 186055.

It is an arithmetic number, because the mean of its divisors is an integer number (36110256).

Almost surely, 2^670617220 is an apocalyptic number.

It is an amenable number.

670617220 is an abundant number, since it is smaller than the sum of its proper divisors (1062675068).

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

670617220 is a wasteful number, since it uses less digits than its factorization.

670617220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368500 (or 368498 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 670617220 is about 25896.2781109564. The cubic root of 670617220 is about 875.3026305572.

The spelling of 670617220 in words is "six hundred seventy million, six hundred seventeen thousand, two hundred twenty".