4000515 has 8 divisors (see below), whose sum is σ = 6400848. Its totient is φ = 2133600.

The previous prime is 4000511. The next prime is 4000523. The reversal of 4000515 is 5150004.

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

It is not a de Polignac number, because 4000515 - 2² = 4000511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 266701 = 4000515 / (4 + 0 + 0 + 0 + 5 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 4000494 and 4000503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000511) 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, 133336 + ... + 133365.

It is an arithmetic number, because the mean of its divisors is an integer number (800106).

Almost surely, 2^4000515 is an apocalyptic number.

4000515 is a deficient number, since it is larger than the sum of its proper divisors (2400333).

4000515 is a wasteful number, since it uses less digits than its factorization.

4000515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266709.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 4000515 is about 2000.1287458561. The cubic root of 4000515 is about 158.7469175006.

Adding to 4000515 its reverse (5150004), we get a palindrome (9150519).

The spelling of 4000515 in words is "four million, five hundred fifteen", and thus it is an aban number.