1187605480 has 32 divisors (see below), whose sum is σ = 2676214440. Its totient is φ = 474312960.

The previous prime is 1187605453. The next prime is 1187605511. The reversal of 1187605480 is 845067811.

It can be written as a sum of positive squares in 4 ways, for example, as 892933924 + 294671556 = 29882^2 + 17166^2 .

It is a super-2 number, since 2×1187605480² = 2820813552252060800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 3982 + ... + 48898.

Almost surely, 2^1187605480 is an apocalyptic number.

1187605480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1187605480 is an abundant number, since it is smaller than the sum of its proper divisors (1488608960).

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

1187605480 is a wasteful number, since it uses less digits than its factorization.

1187605480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45589 (or 45585 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 1187605480 is about 34461.6523109383. The cubic root of 1187605480 is about 1058.9872491475.

The spelling of 1187605480 in words is "one billion, one hundred eighty-seven million, six hundred five thousand, four hundred eighty".