673456740 has 48 divisors (see below), whose sum is σ = 2057106240. Its totient is φ = 163262080.

The previous prime is 673456733. The next prime is 673456753. The reversal of 673456740 is 47654376.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 673456692 and 673456701.

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, 509535 + ... + 510854.

It is an arithmetic number, because the mean of its divisors is an integer number (42856380).

Almost surely, 2^673456740 is an apocalyptic number.

673456740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

673456740 is an abundant number, since it is smaller than the sum of its proper divisors (1383649500).

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

673456740 is a wasteful number, since it uses less digits than its factorization.

673456740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020412 (or 1020410 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 673456740 is about 25951.0450656616. The cubic root of 673456740 is about 876.5362899087.

The spelling of 673456740 in words is "six hundred seventy-three million, four hundred fifty-six thousand, seven hundred forty".