673757240 has 64 divisors (see below), whose sum is σ = 1642788000. Its totient is φ = 247214592.

The previous prime is 673757237. The next prime is 673757251. The reversal of 673757240 is 42757376.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80786 + ... + 88734.

Almost surely, 2^673757240 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 673757240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821394000).

673757240 is an abundant number, since it is smaller than the sum of its proper divisors (969030760).

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

673757240 is a wasteful number, since it uses less digits than its factorization.

673757240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136 (or 8132 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 41.

The square root of 673757240 is about 25956.8341675174. The cubic root of 673757240 is about 876.6666422498. Note that the first 4 decimals are identical.

The spelling of 673757240 in words is "six hundred seventy-three million, seven hundred fifty-seven thousand, two hundred forty".