673745544 has 96 divisors (see below), whose sum is σ = 1867320000. Its totient is φ = 219390336.

The previous prime is 673745539. The next prime is 673745591. The reversal of 673745544 is 445547376.

673745544 = T₁ + T₂ + ... + T₁₅₉₂.

673745544 is a `hidden beast` number, since 67 + 3 + 7 + 45 + 544 = 666.

673745544 is a nontrivial binomial coefficient, being equal to C(1594, 3).

It is a self number, because there is not a number n which added to its sum of digits gives 673745544.

It is an unprimeable number.

It is the 1592-nd tetrahedral number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 844954 + ... + 845750.

It is an arithmetic number, because the mean of its divisors is an integer number (19451250).

Almost surely, 2^673745544 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 673745544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933660000).

673745544 is an abundant number, since it is smaller than the sum of its proper divisors (1193574456).

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

673745544 is a wasteful number, since it uses less digits than its factorization.

673745544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067 (or 1060 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 45.

The square root of 673745544 is about 25956.6088694190. The cubic root of 673745544 is about 876.6615694275.

The spelling of 673745544 in words is "six hundred seventy-three million, seven hundred forty-five thousand, five hundred forty-four".