540312520 has 32 divisors (see below), whose sum is σ = 1326222720. Its totient is φ = 196477120.

The previous prime is 540312511. The next prime is 540312583. The reversal of 540312520 is 25213045.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 540312491 and 540312500.

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, 613552 + ... + 614431.

It is an arithmetic number, because the mean of its divisors is an integer number (41444460).

Almost surely, 2^540312520 is an apocalyptic number.

It is an amenable number.

540312520 is an abundant number, since it is smaller than the sum of its proper divisors (785910200).

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

540312520 is a wasteful number, since it uses less digits than its factorization.

540312520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228005 (or 1228001 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 540312520 is about 23244.6234643627. The cubic root of 540312520 is about 814.4823490888.

Adding to 540312520 its reverse (25213045), we get a palindrome (565525565).

The spelling of 540312520 in words is "five hundred forty million, three hundred twelve thousand, five hundred twenty".