1045830 has 32 divisors (see below), whose sum is σ = 2550528. Its totient is φ = 274400.

The previous prime is 1045829. The next prime is 1045841. The reversal of 1045830 is 385401.

It is a junction number, because it is equal to n+sod(n) for n = 1045797 and 1045806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1885 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (79704).

2^1045830 is an apocalyptic number.

1045830 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 1045830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275264).

1045830 is an abundant number, since it is smaller than the sum of its proper divisors (1504698).

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

1045830 is a wasteful number, since it uses less digits than its factorization.

1045830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1045830 is about 1022.6583007046. The cubic root of 1045830 is about 101.5049056492.

The spelling of 1045830 in words is "one million, forty-five thousand, eight hundred thirty".