1190887056 has 40 divisors (see below), whose sum is σ = 3418288160. Its totient is φ = 396962208.

The previous prime is 1190887039. The next prime is 1190887097. The reversal of 1190887056 is 6507880911.

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, 1377910 + ... + 1378773.

It is an arithmetic number, because the mean of its divisors is an integer number (85457204).

Almost surely, 2^1190887056 is an apocalyptic number.

1190887056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1190887056 is an abundant number, since it is smaller than the sum of its proper divisors (2227401104).

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

1190887056 is a wasteful number, since it uses less digits than its factorization.

1190887056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756700 (or 2756688 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 1190887056 is about 34509.2314605817. The cubic root of 1190887056 is about 1059.9617453858.

The spelling of 1190887056 in words is "one billion, one hundred ninety million, eight hundred eighty-seven thousand, fifty-six".