672629320 has 96 divisors (see below), whose sum is σ = 1717551360. Its totient is φ = 236649600.

The previous prime is 672629257. The next prime is 672629329. The reversal of 672629320 is 23926276.

It is a self number, because there is not a number n which added to its sum of digits gives 672629320.

It is not an unprimeable number, because it can be changed into a prime (672629329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147799 + ... + 152281.

It is an arithmetic number, because the mean of its divisors is an integer number (17891160).

Almost surely, 2^672629320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672629320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858775680).

672629320 is an abundant number, since it is smaller than the sum of its proper divisors (1044922040).

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

672629320 is a wasteful number, since it uses less digits than its factorization.

672629320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547 (or 4532 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 672629320 is about 25935.0982261491. The cubic root of 672629320 is about 876.1771671715.

It can be divided in two parts, 6726 and 29320, that added together give a triangular number (36046 = T₂₆₈).

The spelling of 672629320 in words is "six hundred seventy-two million, six hundred twenty-nine thousand, three hundred twenty".