2440515 has 32 divisors (see below), whose sum is σ = 4870656. Its totient is φ = 1013760.

The previous prime is 2440513. The next prime is 2440517. The reversal of 2440515 is 5150442.

2440515 = 411² + 412² + ... + 424².

2440515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2440513) and next prime (2440517).

It is not a de Polignac number, because 2440515 - 2¹ = 2440513 is a prime.

It is a super-2 number, since 2×2440515² = 11912226930450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

2440515 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2440491 and 2440500.

It is not an unprimeable number, because it can be changed into a prime (2440513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (152208).

2^2440515 is an apocalyptic number.

2440515 is a deficient number, since it is larger than the sum of its proper divisors (2430141).

2440515 is a wasteful number, since it uses less digits than its factorization.

2440515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2440515 is about 1562.2147739668. The cubic root of 2440515 is about 134.6357809388.

Adding to 2440515 its reverse (5150442), we get a palindrome (7590957).

The spelling of 2440515 in words is "two million, four hundred forty thousand, five hundred fifteen".