1163389872 has 40 divisors (see below), whose sum is σ = 3069374976. Its totient is φ = 379544896.

The previous prime is 1163389867. The next prime is 1163389891. The reversal of 1163389872 is 2789833611.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255588 + ... + 260099.

Almost surely, 2^1163389872 is an apocalyptic number.

1163389872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1163389872 is an abundant number, since it is smaller than the sum of its proper divisors (1905985104).

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

1163389872 is a wasteful number, since it uses less digits than its factorization.

1163389872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515745 (or 515739 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 1163389872 is about 34108.5014622454. The cubic root of 1163389872 is about 1051.7400843135.

The spelling of 1163389872 in words is "one billion, one hundred sixty-three million, three hundred eighty-nine thousand, eight hundred seventy-two".