2640782233 has 8 divisors (see below), whose sum is σ = 2677910400. Its totient is φ = 2603911440.

The previous prime is 2640782231. The next prime is 2640782267. The reversal of 2640782233 is 3322870462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2640782233 - 2¹ = 2640782231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2640782192 and 2640782201.

It is not an unprimeable number, because it can be changed into a prime (2640782231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43633 + ... + 84766.

It is an arithmetic number, because the mean of its divisors is an integer number (334738800).

Almost surely, 2^2640782233 is an apocalyptic number.

It is an amenable number.

2640782233 is a deficient number, since it is larger than the sum of its proper divisors (37128167).

2640782233 is a wasteful number, since it uses less digits than its factorization.

2640782233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128687.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 2640782233 is about 51388.5418454348. The cubic root of 2640782233 is about 1382.2211365904.

The spelling of 2640782233 in words is "two billion, six hundred forty million, seven hundred eighty-two thousand, two hundred thirty-three".