542422214640 has 120 divisors (see below), whose sum is σ = 1824400440720. Its totient is φ = 144426304512.

The previous prime is 542422214623. The next prime is 542422214641. The reversal of 542422214640 is 46412224245.

542422214640 is a `hidden beast` number, since 5 + 4 + 2 + 4 + 2 + 2 + 2 + 1 + 4 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 542422214595 and 542422214604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542422214641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97117 + ... + 1046076.

It is an arithmetic number, because the mean of its divisors is an integer number (15203337006).

Almost surely, 2^542422214640 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 542422214640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (912200220360).

542422214640 is an abundant number, since it is smaller than the sum of its proper divisors (1281978226080).

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

542422214640 is a wasteful number, since it uses less digits than its factorization.

542422214640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143871 (or 1143862 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 542422214640 its reverse (46412224245), we get a palindrome (588834438885).

The spelling of 542422214640 in words is "five hundred forty-two billion, four hundred twenty-two million, two hundred fourteen thousand, six hundred forty".