2644062426 has 20 divisors (see below), whose sum is σ = 5924658762. Its totient is φ = 881354088.

The previous prime is 2644062419. The next prime is 2644062433. The reversal of 2644062426 is 6242604462.

2644062426 is a `hidden beast` number, since 2 + 6 + 4 + 4 + 0 + 624 + 26 = 666.

2644062426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2644062419) and next prime (2644062433).

It can be written as a sum of positive squares in only one way, i.e., 2641857201 + 2205225 = 51399^2 + 1485^2 .

It is a super-2 number, since 2×2644062426² = 13982132225170010952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8160525 + ... + 8160848.

Almost surely, 2^2644062426 is an apocalyptic number.

2644062426 is an abundant number, since it is smaller than the sum of its proper divisors (3280596336).

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

2644062426 is a wasteful number, since it uses less digits than its factorization.

2644062426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16321387 (or 16321378 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 2644062426 is about 51420.4475476439. The cubic root of 2644062426 is about 1382.7931989239.

Adding to 2644062426 its reverse (6242604462), we get a palindrome (8886666888).

The spelling of 2644062426 in words is "two billion, six hundred forty-four million, sixty-two thousand, four hundred twenty-six".