672344445 has 16 divisors (see below), whose sum is σ = 1101989952. Its totient is φ = 349837440.

The previous prime is 672344443. The next prime is 672344473. The reversal of 672344445 is 544443276.

It is not a de Polignac number, because 672344445 - 2¹ = 672344443 is a prime.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546007 + ... + 547236.

It is an arithmetic number, because the mean of its divisors is an integer number (68874372).

Almost surely, 2^672344445 is an apocalyptic number.

It is an amenable number.

672344445 is a deficient number, since it is larger than the sum of its proper divisors (429645507).

672344445 is a wasteful number, since it uses less digits than its factorization.

672344445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093292.

The product of its digits is 322560, while the sum is 39.

The square root of 672344445 is about 25929.6055696958. The cubic root of 672344445 is about 876.0534555378.

The spelling of 672344445 in words is "six hundred seventy-two million, three hundred forty-four thousand, four hundred forty-five".