2640422107 has 4 divisors (see below), whose sum is σ = 2640567280. Its totient is φ = 2640276936.

The previous prime is 2640422087. The next prime is 2640422111. The reversal of 2640422107 is 7012240462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640422107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640422207) 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 3 ways as a sum of consecutive naturals, for example, 40608 + ... + 83245.

It is an arithmetic number, because the mean of its divisors is an integer number (660141820).

Almost surely, 2^2640422107 is an apocalyptic number.

2640422107 is a deficient number, since it is larger than the sum of its proper divisors (145173).

2640422107 is a wasteful number, since it uses less digits than its factorization.

2640422107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145172.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 2640422107 is about 51385.0377736555. The cubic root of 2640422107 is about 1382.1583021277.

Adding to 2640422107 its reverse (7012240462), we get a palindrome (9652662569).

The spelling of 2640422107 in words is "two billion, six hundred forty million, four hundred twenty-two thousand, one hundred seven".