1105689880 has 16 divisors (see below), whose sum is σ = 2487802320. Its totient is φ = 442275936.

The previous prime is 1105689863. The next prime is 1105689919. The reversal of 1105689880 is 889865011.

It is a super-2 number, since 2×1105689880² = 2445100221468828800, 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 1105689880.

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, 13821084 + ... + 13821163.

It is an arithmetic number, because the mean of its divisors is an integer number (155487645).

Almost surely, 2^1105689880 is an apocalyptic number.

1105689880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105689880 is an abundant number, since it is smaller than the sum of its proper divisors (1382112440).

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

1105689880 is a wasteful number, since it uses less digits than its factorization.

1105689880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27642258 (or 27642254 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 46.

The square root of 1105689880 is about 33251.9154335506. The cubic root of 1105689880 is about 1034.0569190246.

The spelling of 1105689880 in words is "one billion, one hundred five million, six hundred eighty-nine thousand, eight hundred eighty".