1115424 has 48 divisors (see below), whose sum is σ = 3255840. Its totient is φ = 371520.

The previous prime is 1115419. The next prime is 1115447. The reversal of 1115424 is 4245111.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×1115424³ = 4163333575880835072, which contains 333 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 1115397 and 1115406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219 + ... + 1509.

It is an arithmetic number, because the mean of its divisors is an integer number (67830).

2^1115424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627920).

1115424 is an abundant number, since it is smaller than the sum of its proper divisors (2140416).

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

1115424 is a wasteful number, since it uses less digits than its factorization.

1115424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1296 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 1115424 is about 1056.1363548330. The cubic root of 1115424 is about 103.7082553306.

The spelling of 1115424 in words is "one million, one hundred fifteen thousand, four hundred twenty-four".