673452740 has 24 divisors (see below), whose sum is σ = 1433627160. Its totient is φ = 265690368.

The previous prime is 673452737. The next prime is 673452781. The reversal of 673452740 is 47254376.

It can be written as a sum of positive squares in 4 ways, for example, as 180257476 + 493195264 = 13426^2 + 22208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 673452694 and 673452703.

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, 229175 + ... + 232094.

It is an arithmetic number, because the mean of its divisors is an integer number (59734465).

Almost surely, 2^673452740 is an apocalyptic number.

It is an amenable number.

673452740 is an abundant number, since it is smaller than the sum of its proper divisors (760174420).

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

673452740 is a wasteful number, since it uses less digits than its factorization.

673452740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461351 (or 461349 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 673452740 is about 25950.9679973599. The cubic root of 673452740 is about 876.5345545079.

The spelling of 673452740 in words is "six hundred seventy-three million, four hundred fifty-two thousand, seven hundred forty".