673377344 has 28 divisors (see below), whose sum is σ = 1414837404. Its totient is φ = 316882944.

The previous prime is 673377343. The next prime is 673377359. The reversal of 673377344 is 443773376.

It can be written as a sum of positive squares in 2 ways, for example, as 396487744 + 276889600 = 19912^2 + 16640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 673377295 and 673377304.

It is not an unprimeable number, because it can be changed into a prime (673377343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308369 + ... + 310544.

Almost surely, 2^673377344 is an apocalyptic number.

673377344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

673377344 is an abundant number, since it is smaller than the sum of its proper divisors (741460060).

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

673377344 is a wasteful number, since it uses less digits than its factorization.

673377344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618942 (or 618932 counting only the distinct ones).

The product of its digits is 889056, while the sum is 44.

The square root of 673377344 is about 25949.5152941245. The cubic root of 673377344 is about 876.5018426526.

The spelling of 673377344 in words is "six hundred seventy-three million, three hundred seventy-seven thousand, three hundred forty-four".