2644542436 has 12 divisors (see below), whose sum is σ = 4871525680. Its totient is φ = 1252677960.

The previous prime is 2644542419. The next prime is 2644542521. The reversal of 2644542436 is 6342454462.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17398230 + ... + 17398381.

Almost surely, 2^2644542436 is an apocalyptic number.

It is an amenable number.

2644542436 is a deficient number, since it is larger than the sum of its proper divisors (2226983244).

2644542436 is a wasteful number, since it uses less digits than its factorization.

2644542436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34796634 (or 34796632 counting only the distinct ones).

The product of its digits is 552960, while the sum is 40.

The square root of 2644542436 is about 51425.1148370132. The cubic root of 2644542436 is about 1382.8768724906.

Adding to 2644542436 its reverse (6342454462), we get a palindrome (8986996898).

The spelling of 2644542436 in words is "two billion, six hundred forty-four million, five hundred forty-two thousand, four hundred thirty-six".