1104390 has 48 divisors (see below), whose sum is σ = 3283488. Its totient is φ = 252288.

The previous prime is 1104379. The next prime is 1104403. The reversal of 1104390 is 934011.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247 + ... + 1506.

It is an arithmetic number, because the mean of its divisors is an integer number (68406).

2^1104390 is an apocalyptic number.

1104390 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 1104390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641744).

1104390 is an abundant number, since it is smaller than the sum of its proper divisors (2179098).

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

1104390 is a wasteful number, since it uses less digits than its factorization.

1104390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1104390 is about 1050.8996146160. The cubic root of 1104390 is about 103.3651538029.

The spelling of 1104390 in words is "one million, one hundred four thousand, three hundred ninety".