1084420 has 24 divisors (see below), whose sum is σ = 2318400. Its totient is φ = 425952.

The previous prime is 1084403. The next prime is 1084423. The reversal of 1084420 is 244801.

It is not an unprimeable number, because it can be changed into a prime (1084423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (96600).

2^1084420 is an apocalyptic number.

1084420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1084420 is an abundant number, since it is smaller than the sum of its proper divisors (1233980).

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

1084420 is a wasteful number, since it uses less digits than its factorization.

1084420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1084420 is about 1041.3548866741. The cubic root of 1084420 is about 102.7383309919.

The spelling of 1084420 in words is "one million, eighty-four thousand, four hundred twenty".