2831697240 has 64 divisors (see below), whose sum is σ = 8539637760. Its totient is φ = 751159680.

The previous prime is 2831697227. The next prime is 2831697241. The reversal of 2831697240 is 427961382.

It is a junction number, because it is equal to n+sod(n) for n = 2831697192 and 2831697201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2831697241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38854 + ... + 84693.

It is an arithmetic number, because the mean of its divisors is an integer number (133431840).

Almost surely, 2^2831697240 is an apocalyptic number.

2831697240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2831697240 is an abundant number, since it is smaller than the sum of its proper divisors (5707940520).

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

2831697240 is a wasteful number, since it uses less digits than its factorization.

2831697240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123752 (or 123748 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2831697240 is about 53213.6941021764. The cubic root of 2831697240 is about 1414.7583716737.

The spelling of 2831697240 in words is "two billion, eight hundred thirty-one million, six hundred ninety-seven thousand, two hundred forty".