542532042 has 48 divisors (see below), whose sum is σ = 1332545760. Its totient is φ = 158145696.

The previous prime is 542532041. The next prime is 542532047. The reversal of 542532042 is 240235245.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 542531997 and 542532015.

It is not an unprimeable number, because it can be changed into a prime (542532041) 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, 56568 + ... + 65459.

It is an arithmetic number, because the mean of its divisors is an integer number (27761370).

Almost surely, 2^542532042 is an apocalyptic number.

542532042 is an abundant number, since it is smaller than the sum of its proper divisors (790013718).

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

542532042 is a wasteful number, since it uses less digits than its factorization.

542532042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122067 (or 122064 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 542532042 is about 23292.3172312245. The cubic root of 542532042 is about 815.5960821737.

Adding to 542532042 its reverse (240235245), we get a palindrome (782767287).

The spelling of 542532042 in words is "five hundred forty-two million, five hundred thirty-two thousand, forty-two".