542422540 has 24 divisors (see below), whose sum is σ = 1242641232. Its totient is φ = 197244480.

The previous prime is 542422523. The next prime is 542422541. The reversal of 542422540 is 45224245.

It is a junction number, because it is equal to n+sod(n) for n = 542422499 and 542422508.

It is not an unprimeable number, because it can be changed into a prime (542422541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1232559 + ... + 1232998.

It is an arithmetic number, because the mean of its divisors is an integer number (51776718).

Almost surely, 2^542422540 is an apocalyptic number.

It is an amenable number.

542422540 is an abundant number, since it is smaller than the sum of its proper divisors (700218692).

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

542422540 is a wasteful number, since it uses less digits than its factorization.

542422540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465577 (or 2465575 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 542422540 is about 23289.9665092074. The cubic root of 542422540 is about 815.5412065139.

Adding to 542422540 its reverse (45224245), we get a palindrome (587646785).

The spelling of 542422540 in words is "five hundred forty-two million, four hundred twenty-two thousand, five hundred forty".