1109490 has 32 divisors (see below), whose sum is σ = 2750976. Its totient is φ = 286080.

The previous prime is 1109489. The next prime is 1109491. The reversal of 1109490 is 949011.

It is an interprime number because it is at equal distance from previous prime (1109489) and next prime (1109491).

It is a self number, because there is not a number n which added to its sum of digits gives 1109490.

It is not an unprimeable number, because it can be changed into a prime (1109491) 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, 334 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (85968).

2^1109490 is an apocalyptic number.

1109490 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 1109490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375488).

1109490 is an abundant number, since it is smaller than the sum of its proper divisors (1641486).

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

1109490 is a wasteful number, since it uses less digits than its factorization.

1109490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1109490 is about 1053.3233121886. The cubic root of 1109490 is about 103.5240206564.

The spelling of 1109490 in words is "one million, one hundred nine thousand, four hundred ninety".