2839023638 has 32 divisors (see below), whose sum is σ = 4714174080. Its totient is φ = 1271540160.

The previous prime is 2839023637. The next prime is 2839023661. The reversal of 2839023638 is 8363209382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2839023637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598745 + ... + 603467.

It is an arithmetic number, because the mean of its divisors is an integer number (147317940).

Almost surely, 2^2839023638 is an apocalyptic number.

2839023638 is a deficient number, since it is larger than the sum of its proper divisors (1875150442).

2839023638 is a wasteful number, since it uses less digits than its factorization.

2839023638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 2839023638 is about 53282.4890372062. The cubic root of 2839023638 is about 1415.9774469872.

The spelling of 2839023638 in words is "two billion, eight hundred thirty-nine million, twenty-three thousand, six hundred thirty-eight".