672347520 has 512 divisors, whose sum is σ = 2662934400. Its totient is φ = 159252480.

The previous prime is 672347443. The next prime is 672347567. The reversal of 672347520 is 25743276.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 9210204 + ... + 9210276.

Almost surely, 2^672347520 is an apocalyptic number.

672347520 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 672347520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331467200).

672347520 is an abundant number, since it is smaller than the sum of its proper divisors (1990586880).

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

672347520 is a wasteful number, since it uses less digits than its factorization.

672347520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 672347520 is about 25929.6648647837. The cubic root of 672347520 is about 876.0547910935.

The spelling of 672347520 in words is "six hundred seventy-two million, three hundred forty-seven thousand, five hundred twenty".