2144640522 has 16 divisors (see below), whose sum is σ = 4292403552. Its totient is φ = 714359760.

The previous prime is 2144640521. The next prime is 2144640527. The reversal of 2144640522 is 2250464412.

It is a self number, because there is not a number n which added to its sum of digits gives 2144640522.

It is not an unprimeable number, because it can be changed into a prime (2144640521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121128 + ... + 137699.

It is an arithmetic number, because the mean of its divisors is an integer number (268275222).

Almost surely, 2^2144640522 is an apocalyptic number.

2144640522 is an abundant number, since it is smaller than the sum of its proper divisors (2147763030).

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

2144640522 is a wasteful number, since it uses less digits than its factorization.

2144640522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260213.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 2144640522 is about 46310.2636788002. The cubic root of 2144640522 is about 1289.5895419081.

The spelling of 2144640522 in words is "two billion, one hundred forty-four million, six hundred forty thousand, five hundred twenty-two".