672221184 has 192 divisors, whose sum is σ = 1924715520. Its totient is φ = 208158720.

The previous prime is 672221167. The next prime is 672221201. The reversal of 672221184 is 481122276.

It is an interprime number because it is at equal distance from previous prime (672221167) and next prime (672221201).

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

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, 9467869 + ... + 9467939.

It is an arithmetic number, because the mean of its divisors is an integer number (10024560).

Almost surely, 2^672221184 is an apocalyptic number.

672221184 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 672221184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962357760).

672221184 is an abundant number, since it is smaller than the sum of its proper divisors (1252494336).

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

672221184 is a wasteful number, since it uses less digits than its factorization.

672221184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 166 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 672221184 is about 25927.2286216634. The cubic root of 672221184 is about 875.9999165989. Note that the first 4 decimals are identical.

The spelling of 672221184 in words is "six hundred seventy-two million, two hundred twenty-one thousand, one hundred eighty-four".