840132792 has 96 divisors (see below), whose sum is σ = 2421366480. Its totient is φ = 262241280.

The previous prime is 840132781. The next prime is 840132793. The reversal of 840132792 is 297231048.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840132793) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 256638 + ... + 259890.

Almost surely, 2^840132792 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 840132792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1210683240).

840132792 is an abundant number, since it is smaller than the sum of its proper divisors (1581233688).

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

840132792 is a wasteful number, since it uses less digits than its factorization.

840132792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 840132792 is about 28985.0442814911. The cubic root of 840132792 is about 943.5885134450.

The spelling of 840132792 in words is "eight hundred forty million, one hundred thirty-two thousand, seven hundred ninety-two".