2321791240 has 16 divisors (see below), whose sum is σ = 5224030380. Its totient is φ = 928716480.

The previous prime is 2321791237. The next prime is 2321791259. The reversal of 2321791240 is 421971232.

It can be written as a sum of positive squares in 2 ways, for example, as 2015471236 + 306320004 = 44894^2 + 17502^2 .

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 3 ways as a sum of consecutive naturals, for example, 29022351 + ... + 29022430.

Almost surely, 2^2321791240 is an apocalyptic number.

2321791240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321791240 is an abundant number, since it is smaller than the sum of its proper divisors (2902239140).

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

2321791240 is a wasteful number, since it uses less digits than its factorization.

2321791240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58044792 (or 58044788 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2321791240 is about 48184.9690256204. The cubic root of 2321791240 is about 1324.1618033195.

The spelling of 2321791240 in words is "two billion, three hundred twenty-one million, seven hundred ninety-one thousand, two hundred forty".