673954320 has 160 divisors (see below), whose sum is σ = 2368598400. Its totient is φ = 157151232.

The previous prime is 673954313. The next prime is 673954321. The reversal of 673954320 is 23459376.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (673954321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53596 + ... + 64964.

It is an arithmetic number, because the mean of its divisors is an integer number (14803740).

Almost surely, 2^673954320 is an apocalyptic number.

673954320 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 673954320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1184299200).

673954320 is an abundant number, since it is smaller than the sum of its proper divisors (1694644080).

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

673954320 is a wasteful number, since it uses less digits than its factorization.

673954320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417 (or 11411 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 673954320 is about 25960.6301926590. The cubic root of 673954320 is about 876.7521115200.

The spelling of 673954320 in words is "six hundred seventy-three million, nine hundred fifty-four thousand, three hundred twenty".