1111392 has 72 divisors (see below), whose sum is σ = 3361176. Its totient is φ = 347136.

The previous prime is 1111379. The next prime is 1111393. The reversal of 1111392 is 2931111.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4783 + ... + 5009.

It is an arithmetic number, because the mean of its divisors is an integer number (46683).

2^1111392 is an apocalyptic number.

1111392 is a gapful number since it is divisible by the number (12) 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 1111392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680588).

1111392 is an abundant number, since it is smaller than the sum of its proper divisors (2249784).

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

1111392 is a wasteful number, since it uses less digits than its factorization.

1111392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 249 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

The square root of 1111392 is about 1054.2257822687. The cubic root of 1111392 is about 103.5831440006.

The spelling of 1111392 in words is "one million, one hundred eleven thousand, three hundred ninety-two".