1109362840 has 64 divisors (see below), whose sum is σ = 2549037600. Its totient is φ = 434393088.

The previous prime is 1109362819. The next prime is 1109362867. The reversal of 1109362840 is 482639011.

It is a junction number, because it is equal to n+sod(n) for n = 1109362796 and 1109362805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652872 + ... + 654568.

Almost surely, 2^1109362840 is an apocalyptic number.

1109362840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1109362840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274518800).

1109362840 is an abundant number, since it is smaller than the sum of its proper divisors (1439674760).

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

1109362840 is a wasteful number, since it uses less digits than its factorization.

1109362840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044 (or 2040 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1109362840 is about 33307.0989430181. The cubic root of 1109362840 is about 1035.2006550062.

The spelling of 1109362840 in words is "one billion, one hundred nine million, three hundred sixty-two thousand, eight hundred forty".