1115490 has 48 divisors (see below), whose sum is σ = 2852928. Its totient is φ = 279072.

The previous prime is 1115467. The next prime is 1115497. The reversal of 1115490 is 945111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10779 + ... + 10881.

It is an arithmetic number, because the mean of its divisors is an integer number (59436).

2^1115490 is an apocalyptic number.

1115490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426464).

1115490 is an abundant number, since it is smaller than the sum of its proper divisors (1737438).

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

1115490 is a wasteful number, since it uses less digits than its factorization.

1115490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1115490 is about 1056.1676003362. The cubic root of 1115490 is about 103.7103007739.

The spelling of 1115490 in words is "one million, one hundred fifteen thousand, four hundred ninety".