1187880580 has 24 divisors (see below), whose sum is σ = 2495243520. Its totient is φ = 475020000.

The previous prime is 1187880569. The next prime is 1187880611. The reversal of 1187880580 is 850887811.

It is a super-3 number, since 3×1187880580³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1187880580.

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, 99955 + ... + 111205.

It is an arithmetic number, because the mean of its divisors is an integer number (103968480).

Almost surely, 2^1187880580 is an apocalyptic number.

1187880580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1187880580 is an abundant number, since it is smaller than the sum of its proper divisors (1307362940).

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

1187880580 is a wasteful number, since it uses less digits than its factorization.

1187880580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16539 (or 16537 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 46.

The square root of 1187880580 is about 34465.6434728847. The cubic root of 1187880580 is about 1059.0690116815.

The spelling of 1187880580 in words is "one billion, one hundred eighty-seven million, eight hundred eighty thousand, five hundred eighty".