672898320 has 160 divisors (see below), whose sum is σ = 2356218240. Its totient is φ = 176463360.

The previous prime is 672898313. The next prime is 672898321. The reversal of 672898320 is 23898276.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (672898321) 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, 129207 + ... + 134313.

It is an arithmetic number, because the mean of its divisors is an integer number (14726364).

Almost surely, 2^672898320 is an apocalyptic number.

672898320 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 672898320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1178109120).

672898320 is an abundant number, since it is smaller than the sum of its proper divisors (1683319920).

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

672898320 is a wasteful number, since it uses less digits than its factorization.

672898320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190 (or 5178 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 672898320 is about 25940.2837301368. The cubic root of 672898320 is about 876.2939527662.

The spelling of 672898320 in words is "six hundred seventy-two million, eight hundred ninety-eight thousand, three hundred twenty".