540214220 has 72 divisors (see below), whose sum is σ = 1421212464. Its totient is φ = 170964864.

The previous prime is 540214211. The next prime is 540214249. The reversal of 540214220 is 22412045.

It is a happy number.

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 = 540214192 and 540214201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8462 + ... + 33941.

It is an arithmetic number, because the mean of its divisors is an integer number (19739062).

Almost surely, 2^540214220 is an apocalyptic number.

It is an amenable number.

540214220 is an abundant number, since it is smaller than the sum of its proper divisors (880998244).

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

540214220 is a wasteful number, since it uses less digits than its factorization.

540214220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42439 (or 42430 counting only the distinct ones).

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

The square root of 540214220 is about 23242.5089007190. The cubic root of 540214220 is about 814.4329526945.

Adding to 540214220 its reverse (22412045), we get a palindrome (562626265).

The spelling of 540214220 in words is "five hundred forty million, two hundred fourteen thousand, two hundred twenty".