672041040 has 160 divisors (see below), whose sum is σ = 2300852736. Its totient is φ = 160903680.

The previous prime is 672041017. The next prime is 672041081. The reversal of 672041040 is 40140276.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 672041040.

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, 217587 + ... + 220653.

Almost surely, 2^672041040 is an apocalyptic number.

672041040 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 672041040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150426368).

672041040 is an abundant number, since it is smaller than the sum of its proper divisors (1628811696).

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

672041040 is a wasteful number, since it uses less digits than its factorization.

672041040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 672041040 is about 25923.7543577314. The cubic root of 672041040 is about 875.9216585140.

The spelling of 672041040 in words is "six hundred seventy-two million, forty-one thousand, forty".