4138405044 has 24 divisors (see below), whose sum is σ = 9715524000. Its totient is φ = 1371004704.

The previous prime is 4138405043. The next prime is 4138405049. The reversal of 4138405044 is 4405048314.

It is a junction number, because it is equal to n+sod(n) for n = 4138404996 and 4138405014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138405043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055919 + ... + 1059830.

It is an arithmetic number, because the mean of its divisors is an integer number (404813500).

Almost surely, 2^4138405044 is an apocalyptic number.

It is an amenable number.

4138405044 is an abundant number, since it is smaller than the sum of its proper divisors (5577118956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4138405044 is a wasteful number, since it uses less digits than its factorization.

4138405044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115919 (or 2115917 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 4138405044 is about 64330.4363734617. The cubic root of 4138405044 is about 1605.5025446621.

The spelling of 4138405044 in words is "four billion, one hundred thirty-eight million, four hundred five thousand, forty-four".