1091738882 has 16 divisors (see below), whose sum is σ = 1764147840. Its totient is φ = 503716752.

The previous prime is 1091738831. The next prime is 1091738887. The reversal of 1091738882 is 2888371901.

It is not an unprimeable number, because it can be changed into a prime (1091738887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119969 + ... + 128747.

It is an arithmetic number, because the mean of its divisors is an integer number (110259240).

Almost surely, 2^1091738882 is an apocalyptic number.

1091738882 is a deficient number, since it is larger than the sum of its proper divisors (672408958).

1091738882 is a wasteful number, since it uses less digits than its factorization.

1091738882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13577.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 1091738882 is about 33041.4721524329. The cubic root of 1091738882 is about 1029.6894410435.

The spelling of 1091738882 in words is "one billion, ninety-one million, seven hundred thirty-eight thousand, eight hundred eighty-two".