672845448 has 64 divisors (see below), whose sum is σ = 1942989120. Its totient is φ = 191897600.

The previous prime is 672845419. The next prime is 672845471. The reversal of 672845448 is 844548276.

It is a junction number, because it is equal to n+sod(n) for n = 672845397 and 672845406.

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, 70473 + ... + 79448.

It is an arithmetic number, because the mean of its divisors is an integer number (30359205).

Almost surely, 2^672845448 is an apocalyptic number.

672845448 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

672845448 is an abundant number, since it is smaller than the sum of its proper divisors (1270143672).

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

672845448 is a wasteful number, since it uses less digits than its factorization.

672845448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149958 (or 149954 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 48.

The square root of 672845448 is about 25939.2646002156. The cubic root of 672845448 is about 876.2710009937.

The spelling of 672845448 in words is "six hundred seventy-two million, eight hundred forty-five thousand, four hundred forty-eight".