1084440 has 64 divisors (see below), whose sum is σ = 3720960. Its totient is φ = 247680.

The previous prime is 1084429. The next prime is 1084451. The reversal of 1084440 is 444801.

It is an interprime number because it is at equal distance from previous prime (1084429) and next prime (1084451).

It is a super-2 number, since 2×1084440² = 2352020227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 195 + ... + 1485.

It is an arithmetic number, because the mean of its divisors is an integer number (58140).

2^1084440 is an apocalyptic number.

1084440 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 1084440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860480).

1084440 is an abundant number, since it is smaller than the sum of its proper divisors (2636520).

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

1084440 is a wasteful number, since it uses less digits than its factorization.

1084440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1084440 is about 1041.3644895040. The cubic root of 1084440 is about 102.7389625904.

The spelling of 1084440 in words is "one million, eighty-four thousand, four hundred forty".