673456280 has 64 divisors (see below), whose sum is σ = 1733978880. Its totient is φ = 230601600.

The previous prime is 673456219. The next prime is 673456313. The reversal of 673456280 is 82654376.

It is a happy number.

It is a super-2 number, since 2×673456280² = 907086722142876800, which contains 22 as substring.

It is a congruent number.

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, 427895 + ... + 429465.

It is an arithmetic number, because the mean of its divisors is an integer number (27093420).

Almost surely, 2^673456280 is an apocalyptic number.

It is an amenable number.

673456280 is an abundant number, since it is smaller than the sum of its proper divisors (1060522600).

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

673456280 is a wasteful number, since it uses less digits than its factorization.

673456280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 673456280 is about 25951.0362028186. The cubic root of 673456280 is about 876.5360903379.

The spelling of 673456280 in words is "six hundred seventy-three million, four hundred fifty-six thousand, two hundred eighty".