1108914639 has 24 divisors (see below), whose sum is σ = 1723132800. Its totient is φ = 632492784.

The previous prime is 1108914629. The next prime is 1108914683. The reversal of 1108914639 is 9364198011.

It is not a de Polignac number, because 1108914639 - 2⁷ = 1108914511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1108914639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108914619) 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, 76062 + ... + 89460.

It is an arithmetic number, because the mean of its divisors is an integer number (71797200).

Almost surely, 2^1108914639 is an apocalyptic number.

1108914639 is a deficient number, since it is larger than the sum of its proper divisors (614218161).

1108914639 is a wasteful number, since it uses less digits than its factorization.

1108914639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979 (or 13972 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1108914639 is about 33300.3699528999. The cubic root of 1108914639 is about 1035.0612234782.

The spelling of 1108914639 in words is "one billion, one hundred eight million, nine hundred fourteen thousand, six hundred thirty-nine".