2838998644 has 6 divisors (see below), whose sum is σ = 4968247634. Its totient is φ = 1419499320.

The previous prime is 2838998627. The next prime is 2838998647. The reversal of 2838998644 is 4468998382.

It can be written as a sum of positive squares in only one way, i.e., 2741779044 + 97219600 = 52362^2 + 9860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2838998647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354874827 + ... + 354874834.

Almost surely, 2^2838998644 is an apocalyptic number.

It is an amenable number.

2838998644 is a deficient number, since it is larger than the sum of its proper divisors (2129248990).

2838998644 is a wasteful number, since it uses less digits than its factorization.

2838998644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709749665 (or 709749663 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 61.

The square root of 2838998644 is about 53282.2544943436. The cubic root of 2838998644 is about 1415.9732916803.

The spelling of 2838998644 in words is "two billion, eight hundred thirty-eight million, nine hundred ninety-eight thousand, six hundred forty-four".