672583840 has 24 divisors (see below), whose sum is σ = 1588979700. Its totient is φ = 269033472.

The previous prime is 672583837. The next prime is 672583841. The reversal of 672583840 is 48385276.

It can be written as a sum of positive squares in 2 ways, for example, as 671639056 + 944784 = 25916^2 + 972^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (672583841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101665 + ... + 2101984.

Almost surely, 2^672583840 is an apocalyptic number.

It is an amenable number.

672583840 is an abundant number, since it is smaller than the sum of its proper divisors (916395860).

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

672583840 is a wasteful number, since it uses less digits than its factorization.

672583840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203664 (or 4203656 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 672583840 is about 25934.2214072449. The cubic root of 672583840 is about 876.1574190802.

The spelling of 672583840 in words is "six hundred seventy-two million, five hundred eighty-three thousand, eight hundred forty".