673400740 has 48 divisors (see below), whose sum is σ = 1470873600. Its totient is φ = 258740352.

The previous prime is 673400737. The next prime is 673400773. The reversal of 673400740 is 47004376.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52701 + ... + 64219.

It is an arithmetic number, because the mean of its divisors is an integer number (30643200).

Almost surely, 2^673400740 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 673400740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735436800).

673400740 is an abundant number, since it is smaller than the sum of its proper divisors (797472860).

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

673400740 is a wasteful number, since it uses less digits than its factorization.

673400740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11644 (or 11642 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 673400740 is about 25949.9660886098. The cubic root of 673400740 is about 876.5119936721.

The spelling of 673400740 in words is "six hundred seventy-three million, four hundred thousand, seven hundred forty".