1155819480 has 32 divisors (see below), whose sum is σ = 3467458800. Its totient is φ = 308218496.

The previous prime is 1155819463. The next prime is 1155819493. The reversal of 1155819480 is 849185511.

It is a congruent number.

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, 4815795 + ... + 4816034.

Almost surely, 2^1155819480 is an apocalyptic number.

1155819480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155819480 is an abundant number, since it is smaller than the sum of its proper divisors (2311639320).

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

1155819480 is a wasteful number, since it uses less digits than its factorization.

1155819480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9631843 (or 9631839 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 42.

The square root of 1155819480 is about 33997.3451904704. The cubic root of 1155819480 is about 1049.4538293304.

The spelling of 1155819480 in words is "one billion, one hundred fifty-five million, eight hundred nineteen thousand, four hundred eighty".