670484730 has 128 divisors (see below), whose sum is σ = 1783296000. Its totient is φ = 160579584.

The previous prime is 670484729. The next prime is 670484747. The reversal of 670484730 is 37484076.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2608762 + ... + 2609018.

It is an arithmetic number, because the mean of its divisors is an integer number (13932000).

Almost surely, 2^670484730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670484730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891648000).

670484730 is an abundant number, since it is smaller than the sum of its proper divisors (1112811270).

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

670484730 is a wasteful number, since it uses less digits than its factorization.

670484730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 670484730 is about 25893.7198949861. The cubic root of 670484730 is about 875.2449839196.

The spelling of 670484730 in words is "six hundred seventy million, four hundred eighty-four thousand, seven hundred thirty".