672214144 has 128 divisors (see below), whose sum is σ = 1593648000. Its totient is φ = 282240000.

The previous prime is 672214133. The next prime is 672214177. The reversal of 672214144 is 441412276.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2678019 + ... + 2678269.

It is an arithmetic number, because the mean of its divisors is an integer number (12450375).

Almost surely, 2^672214144 is an apocalyptic number.

672214144 is a gapful number since it is divisible by the number (64) 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 672214144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796824000).

672214144 is an abundant number, since it is smaller than the sum of its proper divisors (921433856).

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

672214144 is an equidigital number, since it uses as much as digits as its factorization.

672214144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 321 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 672214144 is about 25927.0928567011. The cubic root of 672214144 is about 875.9968585474.

The spelling of 672214144 in words is "six hundred seventy-two million, two hundred fourteen thousand, one hundred forty-four".