673444376 has 48 divisors (see below), whose sum is σ = 1393020720. Its totient is φ = 304990400.

The previous prime is 673444337. The next prime is 673444381.

It is a happy number.

673444376 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299930 + ... + 302166.

It is an arithmetic number, because the mean of its divisors is an integer number (29021265).

Almost surely, 2^673444376 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 673444376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696510360).

673444376 is an abundant number, since it is smaller than the sum of its proper divisors (719576344).

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

673444376 is a wasteful number, since it uses less digits than its factorization.

673444376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576 (or 2561 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 44.

The square root of 673444376 is about 25950.8068468015. The cubic root of 673444376 is about 876.5309257626.

It can be divided in two parts, 67 and 3444376, that added together give a palindrome (3444443).

The spelling of 673444376 in words is "six hundred seventy-three million, four hundred forty-four thousand, three hundred seventy-six".