1109616 has 20 divisors (see below), whose sum is σ = 2866632. Its totient is φ = 369856.

The previous prime is 1109611. The next prime is 1109629. The reversal of 1109616 is 6169011.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11511 + ... + 11606.

2^1109616 is an apocalyptic number.

1109616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1109616 is an abundant number, since it is smaller than the sum of its proper divisors (1757016).

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

1109616 is a wasteful number, since it uses less digits than its factorization.

1109616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23128 (or 23122 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1109616 is about 1053.3831211862. The cubic root of 1109616 is about 103.5279394338.

The spelling of 1109616 in words is "one million, one hundred nine thousand, six hundred sixteen".