2502540 has 36 divisors (see below), whose sum is σ = 7591584. Its totient is φ = 667296.

The previous prime is 2502527. The next prime is 2502541. The reversal of 2502540 is 452052.

2502540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2502541) 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 11 ways as a sum of consecutive naturals, for example, 6772 + ... + 7131.

2^2502540 is an apocalyptic number.

2502540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2502540 is an abundant number, since it is smaller than the sum of its proper divisors (5089044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2502540 is a wasteful number, since it uses less digits than its factorization.

2502540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918 (or 13913 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2502540 is about 1581.9418446959. The cubic root of 2502540 is about 135.7668294103.

Adding to 2502540 its reverse (452052), we get a palindrome (2954592).

The spelling of 2502540 in words is "two million, five hundred two thousand, five hundred forty".