1138087960 has 16 divisors (see below), whose sum is σ = 2560698000. Its totient is φ = 455235168.

The previous prime is 1138087957. The next prime is 1138087981. The reversal of 1138087960 is 697808311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14226060 + ... + 14226139.

It is an arithmetic number, because the mean of its divisors is an integer number (160043625).

Almost surely, 2^1138087960 is an apocalyptic number.

1138087960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1138087960 is an abundant number, since it is smaller than the sum of its proper divisors (1422610040).

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

1138087960 is a wasteful number, since it uses less digits than its factorization.

1138087960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28452210 (or 28452206 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 1138087960 is about 33735.5592809724. The cubic root of 1138087960 is about 1044.0595646251.

The spelling of 1138087960 in words is "one billion, one hundred thirty-eight million, eighty-seven thousand, nine hundred sixty".