672745308 has 48 divisors (see below), whose sum is σ = 1640653056. Its totient is φ = 214149760.

The previous prime is 672745279. The next prime is 672745319. The reversal of 672745308 is 803547276.

It is a self number, because there is not a number n which added to its sum of digits gives 672745308.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 208435 + ... + 211637.

It is an arithmetic number, because the mean of its divisors is an integer number (34180272).

Almost surely, 2^672745308 is an apocalyptic number.

It is an amenable number.

672745308 is an abundant number, since it is smaller than the sum of its proper divisors (967907748).

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

672745308 is a wasteful number, since it uses less digits than its factorization.

672745308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994 (or 3992 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 672745308 is about 25937.3342500728. The cubic root of 672745308 is about 876.2275268537.

The spelling of 672745308 in words is "six hundred seventy-two million, seven hundred forty-five thousand, three hundred eight".