4138078 has 16 divisors (see below), whose sum is σ = 7192800. Its totient is φ = 1748736.

The previous prime is 4138073. The next prime is 4138111. The reversal of 4138078 is 8708314.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003 + ... + 3046.

It is an arithmetic number, because the mean of its divisors is an integer number (449550).

Almost surely, 2^4138078 is an apocalyptic number.

4138078 is a deficient number, since it is larger than the sum of its proper divisors (3054722).

4138078 is a wasteful number, since it uses less digits than its factorization.

4138078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 4138078 is about 2034.2266343748. The cubic root of 4138078 is about 160.5460251089.

The spelling of 4138078 in words is "four million, one hundred thirty-eight thousand, seventy-eight".