542044536220 has 96 divisors (see below), whose sum is σ = 1291056076800. Its totient is φ = 189376185600.

The previous prime is 542044536203. The next prime is 542044536307. The reversal of 542044536220 is 22635440245.

It is a self number, because there is not a number n which added to its sum of digits gives 542044536220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 662086 + ... + 1233874.

It is an arithmetic number, because the mean of its divisors is an integer number (13448500800).

Almost surely, 2^542044536220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542044536220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645528038400).

542044536220 is an abundant number, since it is smaller than the sum of its proper divisors (749011540580).

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

542044536220 is a wasteful number, since it uses less digits than its factorization.

542044536220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571979 (or 571977 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 542044536220 its reverse (22635440245), we get a palindrome (564679976465).

The spelling of 542044536220 in words is "five hundred forty-two billion, forty-four million, five hundred thirty-six thousand, two hundred twenty".