2540463 has 16 divisors (see below), whose sum is σ = 3627360. Its totient is φ = 1575936.

The previous prime is 2540443. The next prime is 2540479. The reversal of 2540463 is 3640452.

It is not a de Polignac number, because 2540463 - 2⁵ = 2540431 is a prime.

2540463 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540413) 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 15 ways as a sum of consecutive naturals, for example, 5331 + ... + 5787.

It is an arithmetic number, because the mean of its divisors is an integer number (226710).

2^2540463 is an apocalyptic number.

2540463 is a deficient number, since it is larger than the sum of its proper divisors (1086897).

2540463 is a wasteful number, since it uses less digits than its factorization.

2540463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2540463 is about 1593.8829944510. The cubic root of 2540463 is about 136.4491887792.

It can be divided in two parts, 2540 and 463, that added together give a palindrome (3003).

The spelling of 2540463 in words is "two million, five hundred forty thousand, four hundred sixty-three".