840088830 has 96 divisors (see below), whose sum is σ = 2483428896. Its totient is φ = 180719616.

The previous prime is 840088829. The next prime is 840088841. The reversal of 840088830 is 38880048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8182 + ... + 41798.

It is an arithmetic number, because the mean of its divisors is an integer number (25869051).

Almost surely, 2^840088830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840088830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241714448).

840088830 is an abundant number, since it is smaller than the sum of its proper divisors (1643340066).

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

840088830 is a wasteful number, since it uses less digits than its factorization.

840088830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33658 (or 33651 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 840088830 is about 28984.2859149574. The cubic root of 840088830 is about 943.5720546335.

The spelling of 840088830 in words is "eight hundred forty million, eighty-eight thousand, eight hundred thirty".