4138405045 has 16 divisors (see below), whose sum is σ = 5172156288. Its totient is φ = 3175865280.

The previous prime is 4138405043. The next prime is 4138405049. The reversal of 4138405045 is 5405048314.

It is not a de Polignac number, because 4138405045 - 2¹ = 4138405043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4138405045.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144399 + ... + 170668.

It is an arithmetic number, because the mean of its divisors is an integer number (323259768).

Almost surely, 2^4138405045 is an apocalyptic number.

It is an amenable number.

4138405045 is a deficient number, since it is larger than the sum of its proper divisors (1033751243).

4138405045 is a wasteful number, since it uses less digits than its factorization.

4138405045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315180.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 4138405045 is about 64330.4363812340. The cubic root of 4138405045 is about 1605.5025447914.

The spelling of 4138405045 in words is "four billion, one hundred thirty-eight million, four hundred five thousand, forty-five".