672554040 has 128 divisors (see below), whose sum is σ = 2137397760. Its totient is φ = 168943104.

The previous prime is 672554033. The next prime is 672554081. The reversal of 672554040 is 40455276.

It is a junction number, because it is equal to n+sod(n) for n = 672553992 and 672554010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183102 + ... + 186738.

It is an arithmetic number, because the mean of its divisors is an integer number (16698420).

Almost surely, 2^672554040 is an apocalyptic number.

672554040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672554040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068698880).

672554040 is an abundant number, since it is smaller than the sum of its proper divisors (1464843720).

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

672554040 is a wasteful number, since it uses less digits than its factorization.

672554040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 672554040 is about 25933.6468704268. The cubic root of 672554040 is about 876.1444789949.

The spelling of 672554040 in words is "six hundred seventy-two million, five hundred fifty-four thousand, forty".