1604256322 has 16 divisors (see below), whose sum is σ = 2442150072. Its totient is φ = 790231680.

The previous prime is 1604256319. The next prime is 1604256331. The reversal of 1604256322 is 2236524061.

It can be written as a sum of positive squares in 4 ways, for example, as 1587942801 + 16313521 = 39849^2 + 4039^2 .

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, 131548 + ... + 143224.

Almost surely, 2^1604256322 is an apocalyptic number.

1604256322 is a deficient number, since it is larger than the sum of its proper divisors (837893750).

1604256322 is a wasteful number, since it uses less digits than its factorization.

1604256322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12693.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1604256322 is about 40053.1686886319. The cubic root of 1604256322 is about 1170.6433070693.

The spelling of 1604256322 in words is "one billion, six hundred four million, two hundred fifty-six thousand, three hundred twenty-two".