673203440 has 320 divisors, whose sum is σ = 2106531840. Its totient is φ = 194088960.

The previous prime is 673203413. The next prime is 673203457. The reversal of 673203440 is 44302376.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4287842 + ... + 4287998.

It is an arithmetic number, because the mean of its divisors is an integer number (6582912).

Almost surely, 2^673203440 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 673203440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053265920).

673203440 is an abundant number, since it is smaller than the sum of its proper divisors (1433328400).

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

673203440 is a wasteful number, since it uses less digits than its factorization.

673203440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 673203440 is about 25946.1642637211. The cubic root of 673203440 is about 876.4263820898.

The spelling of 673203440 in words is "six hundred seventy-three million, two hundred three thousand, four hundred forty".