540243144 has 48 divisors (see below), whose sum is σ = 1672182720. Its totient is φ = 154355040.

The previous prime is 540243079. The next prime is 540243161. The reversal of 540243144 is 441342045.

It is a happy 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, 535452 + ... + 536459.

It is an arithmetic number, because the mean of its divisors is an integer number (34837140).

Almost surely, 2^540243144 is an apocalyptic number.

It is an amenable number.

540243144 is an abundant number, since it is smaller than the sum of its proper divisors (1131939576).

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

540243144 is a wasteful number, since it uses less digits than its factorization.

540243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071930 (or 1071923 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 540243144 is about 23243.1311143744. The cubic root of 540243144 is about 814.4474878162.

Adding to 540243144 its reverse (441342045), we get a palindrome (981585189).

The spelling of 540243144 in words is "five hundred forty million, two hundred forty-three thousand, one hundred forty-four".