1108638842 has 16 divisors (see below), whose sum is σ = 1696101120. Its totient is φ = 543293712.

The previous prime is 1108638823. The next prime is 1108638859. The reversal of 1108638842 is 2488368011.

It is a super-2 number, since 2×1108638842² = 2458160163982201928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1108638842.

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, 107759 + ... + 117597.

It is an arithmetic number, because the mean of its divisors is an integer number (106006320).

Almost surely, 2^1108638842 is an apocalyptic number.

1108638842 is a deficient number, since it is larger than the sum of its proper divisors (587462278).

1108638842 is a wasteful number, since it uses less digits than its factorization.

1108638842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 1108638842 is about 33296.2286452986. The cubic root of 1108638842 is about 1034.9754066986.

The spelling of 1108638842 in words is "one billion, one hundred eight million, six hundred thirty-eight thousand, eight hundred forty-two".