540440120 has 32 divisors (see below), whose sum is σ = 1326535920. Its totient is φ = 196523520.

The previous prime is 540440119. The next prime is 540440137. The reversal of 540440120 is 21044045.

It is a super-2 number, since 2×540440120² = 584151046611228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 540440092 and 540440101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613697 + ... + 614576.

Almost surely, 2^540440120 is an apocalyptic number.

It is an amenable number.

540440120 is an abundant number, since it is smaller than the sum of its proper divisors (786095800).

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

540440120 is a wasteful number, since it uses less digits than its factorization.

540440120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228295 (or 1228291 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 540440120 is about 23247.3680230688. The cubic root of 540440120 is about 814.5464599899.

Adding to 540440120 its reverse (21044045), we get a palindrome (561484165).

The spelling of 540440120 in words is "five hundred forty million, four hundred forty thousand, one hundred twenty".