840089400 has 96 divisors (see below), whose sum is σ = 2694135600. Its totient is φ = 216294400.

The previous prime is 840089387. The next prime is 840089413. The reversal of 840089400 is 4980048.

840089400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (840089387) and next prime (840089413).

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, 6741 + ... + 41540.

Almost surely, 2^840089400 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 840089400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347067800).

840089400 is an abundant number, since it is smaller than the sum of its proper divisors (1854046200).

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

840089400 is a wasteful number, since it uses less digits than its factorization.

840089400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48329 (or 48320 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 840089400 is about 28984.2957478701. The cubic root of 840089400 is about 943.5722680379.

The spelling of 840089400 in words is "eight hundred forty million, eighty-nine thousand, four hundred".