676445730 has 64 divisors (see below), whose sum is σ = 1680307200. Its totient is φ = 174101760.

The previous prime is 676445719. The next prime is 676445773. The reversal of 676445730 is 37544676.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 472656 + ... + 474084.

It is an arithmetic number, because the mean of its divisors is an integer number (26254800).

Almost surely, 2^676445730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676445730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840153600).

676445730 is an abundant number, since it is smaller than the sum of its proper divisors (1003861470).

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

676445730 is a wasteful number, since it uses less digits than its factorization.

676445730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 676445730 is about 26008.5703182624. The cubic root of 676445730 is about 877.8311474906.

The spelling of 676445730 in words is "six hundred seventy-six million, four hundred forty-five thousand, seven hundred thirty".