673415844 has 48 divisors (see below), whose sum is σ = 1652185920. Its totient is φ = 213171840.

The previous prime is 673415839. The next prime is 673415863. The reversal of 673415844 is 448514376.

It is a junction number, because it is equal to n+sod(n) for n = 673415796 and 673415805.

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, 5367 + ... + 37089.

It is an arithmetic number, because the mean of its divisors is an integer number (34420540).

Almost surely, 2^673415844 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 673415844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826092960).

673415844 is an abundant number, since it is smaller than the sum of its proper divisors (978770076).

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

673415844 is a wasteful number, since it uses less digits than its factorization.

673415844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31820 (or 31818 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 673415844 is about 25950.2571085529. The cubic root of 673415844 is about 876.5185468469.

It can be divided in two parts, 6734 and 15844, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 673415844 in words is "six hundred seventy-three million, four hundred fifteen thousand, eight hundred forty-four".