542240342 has 8 divisors (see below), whose sum is σ = 929554896. Its totient is φ = 232388712.

The previous prime is 542240323. The next prime is 542240351. The reversal of 542240342 is 243042245.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19365713 + ... + 19365740.

It is an arithmetic number, because the mean of its divisors is an integer number (116194362).

Almost surely, 2^542240342 is an apocalyptic number.

542240342 is a deficient number, since it is larger than the sum of its proper divisors (387314554).

542240342 is a wasteful number, since it uses less digits than its factorization.

542240342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38731462.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 542240342 is about 23286.0546679767. The cubic root of 542240342 is about 815.4498837253.

Adding to 542240342 its reverse (243042245), we get a palindrome (785282587).

The spelling of 542240342 in words is "five hundred forty-two million, two hundred forty thousand, three hundred forty-two".