673402500 has 135 divisors (see below), whose sum is σ = 2139450313. Its totient is φ = 178536000.

The previous prime is 673402493. The next prime is 673402501. The reversal of 673402500 is 5204376.

It is a happy number.

The square root of 673402500 is 25950.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 207878724 + 465523776 = 14418^2 + 21576^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673402501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3892414 + ... + 3892586.

Almost surely, 2^673402500 is an apocalyptic number.

673402500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

673402500 is the 25950-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673402500

673402500 is an abundant number, since it is smaller than the sum of its proper divisors (1466047813).

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

673402500 is a wasteful number, since it uses less digits than its factorization.

673402500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The cubic root of 673402500 is about 876.5127572886.

Adding to 673402500 its reverse (5204376), we get a palindrome (678606876).

The spelling of 673402500 in words is "six hundred seventy-three million, four hundred two thousand, five hundred".