673369456 has 40 divisors (see below), whose sum is σ = 1398928320. Its totient is φ = 312858624.

The previous prime is 673369421. The next prime is 673369469. The reversal of 673369456 is 654963376.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5820 + ... + 37156.

It is an arithmetic number, because the mean of its divisors is an integer number (34973208).

Almost surely, 2^673369456 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 673369456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699464160).

673369456 is an abundant number, since it is smaller than the sum of its proper divisors (725558864).

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

673369456 is a wasteful number, since it uses less digits than its factorization.

673369456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31441 (or 31435 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 49.

The square root of 673369456 is about 25949.3633062547. The cubic root of 673369456 is about 876.4984201667.

The spelling of 673369456 in words is "six hundred seventy-three million, three hundred sixty-nine thousand, four hundred fifty-six".