540304140 has 48 divisors (see below), whose sum is σ = 1592478720. Its totient is φ = 136497600.

The previous prime is 540304139. The next prime is 540304153. The reversal of 540304140 is 41403045.

It is a super-2 number, since 2×540304140² = 583857127402279200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235836 + ... + 238115.

It is an arithmetic number, because the mean of its divisors is an integer number (33176640).

Almost surely, 2^540304140 is an apocalyptic number.

It is an amenable number.

540304140 is an abundant number, since it is smaller than the sum of its proper divisors (1052174580).

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

540304140 is a wasteful number, since it uses less digits than its factorization.

540304140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473982 (or 473980 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 540304140 is about 23244.4432069258. The cubic root of 540304140 is about 814.4781383175.

Adding to 540304140 its reverse (41403045), we get a palindrome (581707185).

The spelling of 540304140 in words is "five hundred forty million, three hundred four thousand, one hundred forty".