672344444 has 6 divisors (see below), whose sum is σ = 1176602784. Its totient is φ = 336172220.

The previous prime is 672344443. The next prime is 672344473. The reversal of 672344444 is 444443276.

It is a junction number, because it is equal to n+sod(n) for n = 672344398 and 672344407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672344443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84043052 + ... + 84043059.

It is an arithmetic number, because the mean of its divisors is an integer number (196100464).

Almost surely, 2^672344444 is an apocalyptic number.

It is an amenable number.

672344444 is a deficient number, since it is larger than the sum of its proper divisors (504258340).

672344444 is a wasteful number, since it uses less digits than its factorization.

672344444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168086115 (or 168086113 counting only the distinct ones).

The product of its digits is 258048, while the sum is 38.

The square root of 672344444 is about 25929.6055504128. The cubic root of 672344444 is about 876.0534551035.

The spelling of 672344444 in words is "six hundred seventy-two million, three hundred forty-four thousand, four hundred forty-four".