542241140540 has 72 divisors (see below), whose sum is σ = 1252233595536. Its totient is φ = 197084448000.

The previous prime is 542241140533. The next prime is 542241140561. The reversal of 542241140540 is 45041142245.

It is a junction number, because it is equal to n+sod(n) for n = 542241140497 and 542241140506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5119115 + ... + 5223965.

Almost surely, 2^542241140540 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 542241140540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626116797768).

542241140540 is an abundant number, since it is smaller than the sum of its proper divisors (709992454996).

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

542241140540 is a wasteful number, since it uses less digits than its factorization.

542241140540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107019 (or 107006 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 542241140540 its reverse (45041142245), we get a palindrome (587282282785).

The spelling of 542241140540 in words is "five hundred forty-two billion, two hundred forty-one million, one hundred forty thousand, five hundred forty".