1138522884 has 24 divisors (see below), whose sum is σ = 2661647520. Its totient is φ = 378779904.

The previous prime is 1138522871. The next prime is 1138522897. The reversal of 1138522884 is 4882258311.

It is an interprime number because it is at equal distance from previous prime (1138522871) and next prime (1138522897).

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, 84429 + ... + 96980.

It is an arithmetic number, because the mean of its divisors is an integer number (110901980).

Almost surely, 2^1138522884 is an apocalyptic number.

It is an amenable number.

1138522884 is an abundant number, since it is smaller than the sum of its proper divisors (1523124636).

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

1138522884 is a wasteful number, since it uses less digits than its factorization.

1138522884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181939 (or 181937 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 1138522884 is about 33742.0047418644. The cubic root of 1138522884 is about 1044.1925446017.

The spelling of 1138522884 in words is "one billion, one hundred thirty-eight million, five hundred twenty-two thousand, eight hundred eighty-four".