672371280 has 400 divisors, whose sum is σ = 2723766144. Its totient is φ = 151165440.

The previous prime is 672371269. The next prime is 672371281. The reversal of 672371280 is 82173276.

672371280 is a `hidden beast` number, since 6 + 7 + 2 + 371 + 280 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672371281) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11022450 + ... + 11022510.

Almost surely, 2^672371280 is an apocalyptic number.

672371280 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 672371280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361883072).

672371280 is an abundant number, since it is smaller than the sum of its proper divisors (2051394864).

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

672371280 is an frugal number, since it uses more digits than its factorization.

672371280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 672371280 is about 25930.1230232330. The cubic root of 672371280 is about 876.0651105667.

The spelling of 672371280 in words is "six hundred seventy-two million, three hundred seventy-one thousand, two hundred eighty".