2440631 has 4 divisors (see below), whose sum is σ = 2506632. Its totient is φ = 2374632.

The previous prime is 2440621. The next prime is 2440643. The reversal of 2440631 is 1360442.

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-2440631 is a prime.

It is a super-2 number, since 2×2440631² = 11913359356322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32945 + ... + 33018.

It is an arithmetic number, because the mean of its divisors is an integer number (626658).

2^2440631 is an apocalyptic number.

2440631 is a deficient number, since it is larger than the sum of its proper divisors (66001).

2440631 is an equidigital number, since it uses as much as digits as its factorization.

2440631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66000.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2440631 is about 1562.2519003029. The cubic root of 2440631 is about 134.6379140272.

The spelling of 2440631 in words is "two million, four hundred forty thousand, six hundred thirty-one".