2540502 has 24 divisors (see below), whose sum is σ = 5610384. Its totient is φ = 830544.

The previous prime is 2540479. The next prime is 2540513. The reversal of 2540502 is 2050452.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378 + ... + 2285.

It is an arithmetic number, because the mean of its divisors is an integer number (233766).

2^2540502 is an apocalyptic number.

2540502 is an abundant number, since it is smaller than the sum of its proper divisors (3069882).

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

2540502 is a wasteful number, since it uses less digits than its factorization.

2540502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724 (or 2721 counting only the distinct ones).

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

The square root of 2540502 is about 1593.8952286772. The cubic root of 2540502 is about 136.4498870103.

Adding to 2540502 its reverse (2050452), we get a palindrome (4590954).

The spelling of 2540502 in words is "two million, five hundred forty thousand, five hundred two".