2644047038 has 16 divisors (see below), whose sum is σ = 4062689136. Its totient is φ = 1289883840.

The previous prime is 2644047031. The next prime is 2644047059. The reversal of 2644047038 is 8307404462.

It is a junction number, because it is equal to n+sod(n) for n = 2644046992 and 2644047010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644047031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65828 + ... + 98088.

It is an arithmetic number, because the mean of its divisors is an integer number (253918071).

Almost surely, 2^2644047038 is an apocalyptic number.

2644047038 is a deficient number, since it is larger than the sum of its proper divisors (1418642098).

2644047038 is a wasteful number, since it uses less digits than its factorization.

2644047038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33259.

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 2644047038 is about 51420.2979182346. The cubic root of 2644047038 is about 1382.7905163772.

The spelling of 2644047038 in words is "two billion, six hundred forty-four million, forty-seven thousand, thirty-eight".