1084869144 has 96 divisors (see below), whose sum is σ = 3274830000. Its totient is φ = 322430976.

The previous prime is 1084869139. The next prime is 1084869209. The reversal of 1084869144 is 4419684801.

It is a self number, because there is not a number n which added to its sum of digits gives 1084869144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69 + ... + 46580.

Almost surely, 2^1084869144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1084869144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637415000).

1084869144 is an abundant number, since it is smaller than the sum of its proper divisors (2189960856).

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

1084869144 is a wasteful number, since it uses less digits than its factorization.

1084869144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46697 (or 46690 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1084869144 is about 32937.3518061182. The cubic root of 1084869144 is about 1027.5251305413.

The spelling of 1084869144 in words is "one billion, eighty-four million, eight hundred sixty-nine thousand, one hundred forty-four".