2540524 has 24 divisors (see below), whose sum is σ = 5207328. Its totient is φ = 1061760.

The previous prime is 2540519. The next prime is 2540533. The reversal of 2540524 is 4250452.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2540495 and 2540504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 2254.

It is an arithmetic number, because the mean of its divisors is an integer number (216972).

2^2540524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2603664).

2540524 is an abundant number, since it is smaller than the sum of its proper divisors (2666804).

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

2540524 is a wasteful number, since it uses less digits than its factorization.

2540524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2263 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2540524 is about 1593.9021299942. The cubic root of 2540524 is about 136.4502808811.

Adding to 2540524 its reverse (4250452), we get a palindrome (6790976).

The spelling of 2540524 in words is "two million, five hundred forty thousand, five hundred twenty-four".