673403380 has 24 divisors (see below), whose sum is σ = 1522928232. Its totient is φ = 248641152.

The previous prime is 673403363. The next prime is 673403411. The reversal of 673403380 is 83304376.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23561316 + 649842064 = 4854^2 + 25492^2 .

It is a super-2 number, since 2×673403380² = 906944224390848800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294747 + ... + 1295266.

It is an arithmetic number, because the mean of its divisors is an integer number (63455343).

Almost surely, 2^673403380 is an apocalyptic number.

It is an amenable number.

673403380 is an abundant number, since it is smaller than the sum of its proper divisors (849524852).

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

673403380 is a wasteful number, since it uses less digits than its factorization.

673403380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590035 (or 2590033 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 673403380 is about 25950.0169556785. The cubic root of 673403380 is about 876.5131390964.

The spelling of 673403380 in words is "six hundred seventy-three million, four hundred three thousand, three hundred eighty".