4040015 has 8 divisors (see below), whose sum is σ = 5540640. Its totient is φ = 2770272.

The previous prime is 4040011. The next prime is 4040021. The reversal of 4040015 is 5100404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4040015 - 2² = 4040011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040011) 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, 57680 + ... + 57749.

It is an arithmetic number, because the mean of its divisors is an integer number (692580).

Almost surely, 2^4040015 is an apocalyptic number.

4040015 is a deficient number, since it is larger than the sum of its proper divisors (1500625).

4040015 is a wasteful number, since it uses less digits than its factorization.

4040015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115441.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4040015 is about 2009.9788556102. The cubic root of 4040015 is about 159.2676819488.

Adding to 4040015 its reverse (5100404), we get a palindrome (9140419).

The spelling of 4040015 in words is "four million, forty thousand, fifteen".