672790188 has 72 divisors (see below), whose sum is σ = 1831569600. Its totient is φ = 191655072.

The previous prime is 672790187. The next prime is 672790199. The reversal of 672790188 is 881097276.

672790188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (672790187) 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, 221343 + ... + 224361.

Almost surely, 2^672790188 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 672790188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915784800).

672790188 is an abundant number, since it is smaller than the sum of its proper divisors (1158779412).

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

672790188 is a wasteful number, since it uses less digits than its factorization.

672790188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419 (or 3410 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 672790188 is about 25938.1993977994. The cubic root of 672790188 is about 876.2470113037.

The spelling of 672790188 in words is "six hundred seventy-two million, seven hundred ninety thousand, one hundred eighty-eight".