1603320964 has 36 divisors (see below), whose sum is σ = 3333367296. Its totient is φ = 672513744.

The previous prime is 1603320931. The next prime is 1603320989. The reversal of 1603320964 is 4690233061.

It is a happy number.

It is a super-2 number, since 2×1603320964² = 5141276227203778592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77812 + ... + 96235.

It is an arithmetic number, because the mean of its divisors is an integer number (92593536).

Almost surely, 2^1603320964 is an apocalyptic number.

1603320964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1603320964 is an abundant number, since it is smaller than the sum of its proper divisors (1730046332).

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

1603320964 is a wasteful number, since it uses less digits than its factorization.

1603320964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174112 (or 174103 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 1603320964 is about 40041.4905316972. The cubic root of 1603320964 is about 1170.4157491986.

The spelling of 1603320964 in words is "one billion, six hundred three million, three hundred twenty thousand, nine hundred sixty-four".