672844480 has 336 divisors, whose sum is σ = 2101510656. Its totient is φ = 202782720.

The previous prime is 672844463. The next prime is 672844483. The reversal of 672844480 is 84448276.

672844480 = T₅₂₁₆ + T₅₂₁₇ + ... + T₅₂₆₄.

It is not an unprimeable number, because it can be changed into a prime (672844483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8106519 + ... + 8106601.

It is an arithmetic number, because the mean of its divisors is an integer number (6254496).

Almost surely, 2^672844480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672844480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050755328).

672844480 is an abundant number, since it is smaller than the sum of its proper divisors (1428666176).

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

672844480 is a wasteful number, since it uses less digits than its factorization.

672844480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The square root of 672844480 is about 25939.2459412374. The cubic root of 672844480 is about 876.2705807731.

The spelling of 672844480 in words is "six hundred seventy-two million, eight hundred forty-four thousand, four hundred eighty".