1115040 has 96 divisors (see below), whose sum is σ = 3701376. Its totient is φ = 281600.

The previous prime is 1115029. The next prime is 1115057. The reversal of 1115040 is 405111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10990 + ... + 11090.

It is an arithmetic number, because the mean of its divisors is an integer number (38556).

2^1115040 is an apocalyptic number.

1115040 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 1115040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1850688).

1115040 is an abundant number, since it is smaller than the sum of its proper divisors (2586336).

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

1115040 is a wasteful number, since it uses less digits than its factorization.

1115040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1115040 is about 1055.9545444762. The cubic root of 1115040 is about 103.6963529685.

It can be divided in two parts, 111 and 5040, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 1115040 in words is "one million, one hundred fifteen thousand, forty".