542405042 has 8 divisors (see below), whose sum is σ = 821211696. Its totient is φ = 268667812.

The previous prime is 542405041. The next prime is 542405063. The reversal of 542405042 is 240504245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (542405041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267088 + ... + 1267515.

It is an arithmetic number, because the mean of its divisors is an integer number (102651462).

Almost surely, 2^542405042 is an apocalyptic number.

542405042 is a deficient number, since it is larger than the sum of its proper divisors (278806654).

542405042 is a wasteful number, since it uses less digits than its factorization.

542405042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534712.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 542405042 is about 23289.5908508501. The cubic root of 542405042 is about 815.5324369093.

Adding to 542405042 its reverse (240504245), we get a palindrome (782909287).

The spelling of 542405042 in words is "five hundred forty-two million, four hundred five thousand, forty-two".