2831328240 has 160 divisors (see below), whose sum is σ = 10008484416. Its totient is φ = 655933440.

The previous prime is 2831328233. The next prime is 2831328251. The reversal of 2831328240 is 428231382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26350 + ... + 79730.

Almost surely, 2^2831328240 is an apocalyptic number.

2831328240 is a gapful number since it is divisible by the number (20) 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 2831328240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5004242208).

2831328240 is an abundant number, since it is smaller than the sum of its proper divisors (7177156176).

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

2831328240 is a wasteful number, since it uses less digits than its factorization.

2831328240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53427 (or 53421 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2831328240 is about 53210.2268365772. The cubic root of 2831328240 is about 1414.6969163611.

The spelling of 2831328240 in words is "two billion, eight hundred thirty-one million, three hundred twenty-eight thousand, two hundred forty".