1127890918 has 48 divisors (see below), whose sum is σ = 2216291328. Its totient is φ = 425250000.

The previous prime is 1127890909. The next prime is 1127890919. The reversal of 1127890918 is 8190987211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127890919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16543 + ... + 50293.

It is an arithmetic number, because the mean of its divisors is an integer number (46172736).

Almost surely, 2^1127890918 is an apocalyptic number.

1127890918 is a deficient number, since it is larger than the sum of its proper divisors (1088400410).

1127890918 is a wasteful number, since it uses less digits than its factorization.

1127890918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33809 (or 33802 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 46.

The square root of 1127890918 is about 33584.0872735884. The cubic root of 1127890918 is about 1040.9320164534.

The spelling of 1127890918 in words is "one billion, one hundred twenty-seven million, eight hundred ninety thousand, nine hundred eighteen".