672351040 has 56 divisors (see below), whose sum is σ = 1616659200. Its totient is φ = 266316288.

The previous prime is 672351023. The next prime is 672351047. The reversal of 672351040 is 40153276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672351047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22761 + ... + 43159.

Almost surely, 2^672351040 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 672351040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (808329600).

672351040 is an abundant number, since it is smaller than the sum of its proper divisors (944308160).

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

672351040 is a wasteful number, since it uses less digits than its factorization.

672351040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20519 (or 20509 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 672351040 is about 25929.7327406204. The cubic root of 672351040 is about 876.0563199196.

The spelling of 672351040 in words is "six hundred seventy-two million, three hundred fifty-one thousand, forty".