2440987 has 4 divisors (see below), whose sum is σ = 2569480. Its totient is φ = 2312496.

The previous prime is 2440973. The next prime is 2440993. The reversal of 2440987 is 7890442.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2440987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64218 + ... + 64255.

It is an arithmetic number, because the mean of its divisors is an integer number (642370).

2^2440987 is an apocalyptic number.

2440987 is a deficient number, since it is larger than the sum of its proper divisors (128493).

2440987 is a wasteful number, since it uses less digits than its factorization.

2440987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128492.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2440987 is about 1562.3658342399. The cubic root of 2440987 is about 134.6444599802.

The spelling of 2440987 in words is "two million, four hundred forty thousand, nine hundred eighty-seven".