1608978322 has 16 divisors (see below), whose sum is σ = 2768212800. Its totient is φ = 687071088.

The previous prime is 1608978289. The next prime is 1608978331. The reversal of 1608978322 is 2238798061.

It is a super-2 number, since 2×1608978322² = 5177622481331871368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203572 + ... + 211327.

It is an arithmetic number, because the mean of its divisors is an integer number (173013300).

Almost surely, 2^1608978322 is an apocalyptic number.

1608978322 is a deficient number, since it is larger than the sum of its proper divisors (1159234478).

1608978322 is a wasteful number, since it uses less digits than its factorization.

1608978322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415185.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1608978322 is about 40112.0720232700. The cubic root of 1608978322 is about 1171.7907469449.

The spelling of 1608978322 in words is "one billion, six hundred eight million, nine hundred seventy-eight thousand, three hundred twenty-two".