542220940 has 24 divisors (see below), whose sum is σ = 1169440272. Its totient is φ = 211026240.

The previous prime is 542220937. The next prime is 542220947. The reversal of 542220940 is 49022245.

It is a junction number, because it is equal to n+sod(n) for n = 542220899 and 542220908.

It is not an unprimeable number, because it can be changed into a prime (542220947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365626 + ... + 367105.

It is an arithmetic number, because the mean of its divisors is an integer number (48726678).

Almost surely, 2^542220940 is an apocalyptic number.

It is an amenable number.

542220940 is an abundant number, since it is smaller than the sum of its proper divisors (627219332).

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

542220940 is a wasteful number, since it uses less digits than its factorization.

542220940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732777 (or 732775 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 542220940 is about 23285.6380629778. The cubic root of 542220940 is about 815.4401576892.

It can be divided in two parts, 5422 and 20940, that added together give a palindrome (26362).

The spelling of 542220940 in words is "five hundred forty-two million, two hundred twenty thousand, nine hundred forty".