672296128 has 112 divisors (see below), whose sum is σ = 1575555904. Its totient is φ = 278691840.

The previous prime is 672296111. The next prime is 672296159. The reversal of 672296128 is 821692276.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1994776 + ... + 1995112.

Almost surely, 2^672296128 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 672296128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787777952).

672296128 is an abundant number, since it is smaller than the sum of its proper divisors (903259776).

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

672296128 is a wasteful number, since it uses less digits than its factorization.

672296128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 480 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 672296128 is about 25928.6738573341. The cubic root of 672296128 is about 876.0324696235.

The spelling of 672296128 in words is "six hundred seventy-two million, two hundred ninety-six thousand, one hundred twenty-eight".