1113420 has 96 divisors (see below), whose sum is σ = 3902976. Its totient is φ = 230400.

The previous prime is 1113403. The next prime is 1113421. The reversal of 1113420 is 243111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1113396 and 1113405.

It is not an unprimeable number, because it can be changed into a prime (1113421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4500 + ... + 4740.

It is an arithmetic number, because the mean of its divisors is an integer number (40656).

2^1113420 is an apocalyptic number.

1113420 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 1113420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1951488).

1113420 is an abundant number, since it is smaller than the sum of its proper divisors (2789556).

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

1113420 is a wasteful number, since it uses less digits than its factorization.

1113420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1113420 is about 1055.1871871853. The cubic root of 1113420 is about 103.6461097748.

Adding to 1113420 its reverse (243111), we get a palindrome (1356531).

It can be divided in two parts, 11 and 13420, that added together give a palindrome (13431).

The spelling of 1113420 in words is "one million, one hundred thirteen thousand, four hundred twenty".