609405328 has 40 divisors (see below), whose sum is σ = 1351288512. Its totient is φ = 260807808.

The previous prime is 609405317. The next prime is 609405343. The reversal of 609405328 is 823504906.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 85851 + ... + 92677.

Almost surely, 2^609405328 is an apocalyptic number.

It is an amenable number.

609405328 is an abundant number, since it is smaller than the sum of its proper divisors (741883184).

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

609405328 is a wasteful number, since it uses less digits than its factorization.

609405328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639 (or 7633 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 609405328 is about 24686.1363522119. The cubic root of 609405328 is about 847.8169252943.

The spelling of 609405328 in words is "six hundred nine million, four hundred five thousand, three hundred twenty-eight".