4080138 has 16 divisors (see below), whose sum is σ = 8381280. Its totient is φ = 1323216.

The previous prime is 4080137. The next prime is 4080143. The reversal of 4080138 is 8310804.

It is not an unprimeable number, because it can be changed into a prime (4080133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8968 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (523830).

Almost surely, 2^4080138 is an apocalyptic number.

4080138 is an abundant number, since it is smaller than the sum of its proper divisors (4301142).

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

4080138 is a wasteful number, since it uses less digits than its factorization.

4080138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18421.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 4080138 is about 2019.9351474738. The cubic root of 4080138 is about 159.7931963584.

The spelling of 4080138 in words is "four million, eighty thousand, one hundred thirty-eight".