1186881340 has 12 divisors (see below), whose sum is σ = 2492450856. Its totient is φ = 474752528.

The previous prime is 1186881329. The next prime is 1186881373. The reversal of 1186881340 is 431886811.

It is a junction number, because it is equal to n+sod(n) for n = 1186881293 and 1186881302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29672014 + ... + 29672053.

It is an arithmetic number, because the mean of its divisors is an integer number (207704238).

Almost surely, 2^1186881340 is an apocalyptic number.

1186881340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1186881340 is an abundant number, since it is smaller than the sum of its proper divisors (1305569516).

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

1186881340 is a wasteful number, since it uses less digits than its factorization.

1186881340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59344076 (or 59344074 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 1186881340 is about 34451.1442480507. The cubic root of 1186881340 is about 1058.7719669529.

The spelling of 1186881340 in words is "one billion, one hundred eighty-six million, eight hundred eighty-one thousand, three hundred forty".