3838643444 has 6 divisors (see below), whose sum is σ = 6717626034. Its totient is φ = 1919321720.

The previous prime is 3838643437. The next prime is 3838643509. The reversal of 3838643444 is 4443468383.

3838643444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3772416400 + 66227044 = 61420^2 + 8138^2 .

It is a super-2 number, since 2×3838643444² = 29470366980328362272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479830427 + ... + 479830434.

It is an arithmetic number, because the mean of its divisors is an integer number (1119604339).

Almost surely, 2^3838643444 is an apocalyptic number.

It is an amenable number.

3838643444 is a deficient number, since it is larger than the sum of its proper divisors (2878982590).

3838643444 is a wasteful number, since it uses less digits than its factorization.

3838643444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959660865 (or 959660863 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 47.

The square root of 3838643444 is about 61956.7869082960. The cubic root of 3838643444 is about 1565.7626341521.

The spelling of 3838643444 in words is "three billion, eight hundred thirty-eight million, six hundred forty-three thousand, four hundred forty-four".