4080015 has 24 divisors (see below), whose sum is σ = 7177248. Its totient is φ = 2143680.

The previous prime is 4080007. The next prime is 4080029. The reversal of 4080015 is 5100804.

It is not a de Polignac number, because 4080015 - 2³ = 4080007 is a prime.

4080015 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4080015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2557 + ... + 3833.

It is an arithmetic number, because the mean of its divisors is an integer number (299052).

Almost surely, 2^4080015 is an apocalyptic number.

4080015 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4080015 is a deficient number, since it is larger than the sum of its proper divisors (3097233).

4080015 is a wasteful number, since it uses less digits than its factorization.

4080015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 4080015 is about 2019.9047007223. The cubic root of 4080015 is about 159.7915906316.

Adding to 4080015 its reverse (5100804), we get a palindrome (9180819).

The spelling of 4080015 in words is "four million, eighty thousand, fifteen".