2644522442 has 4 divisors (see below), whose sum is σ = 3966783666. Its totient is φ = 1322261220.

The previous prime is 2644522417. The next prime is 2644522453. The reversal of 2644522442 is 2442254462.

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

It can be written as a sum of positive squares in only one way, i.e., 2545101601 + 99420841 = 50449^2 + 9971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661130609 + ... + 661130612.

Almost surely, 2^2644522442 is an apocalyptic number.

2644522442 is a deficient number, since it is larger than the sum of its proper divisors (1322261224).

2644522442 is a wasteful number, since it uses less digits than its factorization.

2644522442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322261223.

The product of its digits is 122880, while the sum is 35.

The square root of 2644522442 is about 51424.9204374688. The cubic root of 2644522442 is about 1382.8733874126.

The spelling of 2644522442 in words is "two billion, six hundred forty-four million, five hundred twenty-two thousand, four hundred forty-two".