540401524 has 24 divisors (see below), whose sum is σ = 1020791520. Its totient is φ = 248842464.

The previous prime is 540401507. The next prime is 540401527. The reversal of 540401524 is 425104045.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540401527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11307 + ... + 34765.

It is an arithmetic number, because the mean of its divisors is an integer number (42532980).

Almost surely, 2^540401524 is an apocalyptic number.

It is an amenable number.

540401524 is a deficient number, since it is larger than the sum of its proper divisors (480389996).

540401524 is a wasteful number, since it uses less digits than its factorization.

540401524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23919 (or 23917 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 540401524 is about 23246.5378927702. The cubic root of 540401524 is about 814.5270690143.

Adding to 540401524 its reverse (425104045), we get a palindrome (965505569).

The spelling of 540401524 in words is "five hundred forty million, four hundred one thousand, five hundred twenty-four".