11109960 has 128 divisors (see below), whose sum is σ = 37785600. Its totient is φ = 2939328.

The previous prime is 11109949. The next prime is 11109977. The reversal of 11109960 is 6990111.

It is a super-2 number, since 2×11109960² = 246862422403200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87417 + ... + 87543.

It is an arithmetic number, because the mean of its divisors is an integer number (295200).

Almost surely, 2^11109960 is an apocalyptic number.

11109960 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 11109960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18892800).

11109960 is an abundant number, since it is smaller than the sum of its proper divisors (26675640).

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

11109960 is an equidigital number, since it uses as much as digits as its factorization.

11109960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 11109960 is about 3333.1606621944. The cubic root of 11109960 is about 223.1366105109.

The spelling of 11109960 in words is "eleven million, one hundred nine thousand, nine hundred sixty".