2438334644 has 6 divisors (see below), whose sum is σ = 4267085634. Its totient is φ = 1219167320.

The previous prime is 2438334641. The next prime is 2438334683. The reversal of 2438334644 is 4464338342.

It can be written as a sum of positive squares in only one way, i.e., 2154816400 + 283518244 = 46420^2 + 16838^2 .

It is a super-2 number, since 2×2438334644² = 11890951672261213472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2438334641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304791827 + ... + 304791834.

It is an arithmetic number, because the mean of its divisors is an integer number (711180939).

Almost surely, 2^2438334644 is an apocalyptic number.

It is an amenable number.

2438334644 is a deficient number, since it is larger than the sum of its proper divisors (1828750990).

2438334644 is a wasteful number, since it uses less digits than its factorization.

2438334644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609583665 (or 609583663 counting only the distinct ones).

The product of its digits is 663552, while the sum is 41.

The square root of 2438334644 is about 49379.4961902205. The cubic root of 2438334644 is about 1345.9567445900.

The spelling of 2438334644 in words is "two billion, four hundred thirty-eight million, three hundred thirty-four thousand, six hundred forty-four".