2840786432 has 160 divisors (see below), whose sum is σ = 6533581824. Its totient is φ = 1222041600.

The previous prime is 2840786381. The next prime is 2840786471. The reversal of 2840786432 is 2346870482.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 9253223 + ... + 9253529.

Almost surely, 2^2840786432 is an apocalyptic number.

2840786432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2840786432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3266790912).

2840786432 is an abundant number, since it is smaller than the sum of its proper divisors (3692795392).

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

2840786432 is a wasteful number, since it uses less digits than its factorization.

2840786432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The square root of 2840786432 is about 53299.0284339218. The cubic root of 2840786432 is about 1416.2704538359.

The spelling of 2840786432 in words is "two billion, eight hundred forty million, seven hundred eighty-six thousand, four hundred thirty-two".