1110990 has 32 divisors (see below), whose sum is σ = 2760480. Its totient is φ = 285824.

The previous prime is 1110983. The next prime is 1110997. The reversal of 1110990 is 990111.

1110990 = T₄₄ + T₄₅ + ... + T₁₈₈.

It is an interprime number because it is at equal distance from previous prime (1110983) and next prime (1110997).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232 + ... + 1508.

It is an arithmetic number, because the mean of its divisors is an integer number (86265).

2^1110990 is an apocalyptic number.

1110990 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 1110990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1380240).

1110990 is an abundant number, since it is smaller than the sum of its proper divisors (1649490).

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

1110990 is a wasteful number, since it uses less digits than its factorization.

1110990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 1110990 is about 1054.0351037798. The cubic root of 1110990 is about 103.5706535246.

The spelling of 1110990 in words is "one million, one hundred ten thousand, nine hundred ninety".