1111380 has 24 divisors (see below), whose sum is σ = 3112032. Its totient is φ = 296352.

The previous prime is 1111379. The next prime is 1111393. The reversal of 1111380 is 831111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9202 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (129668).

2^1111380 is an apocalyptic number.

1111380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111380 is an abundant number, since it is smaller than the sum of its proper divisors (2000652).

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

1111380 is a wasteful number, since it uses less digits than its factorization.

1111380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18535 (or 18533 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1111380 is about 1054.2200908729. The cubic root of 1111380 is about 103.5827711942.

Adding to 1111380 its reverse (831111), we get a palindrome (1942491).

The spelling of 1111380 in words is "one million, one hundred eleven thousand, three hundred eighty".