542072868 has 12 divisors (see below), whose sum is σ = 1264836720. Its totient is φ = 180690952.

The previous prime is 542072857. The next prime is 542072893. The reversal of 542072868 is 868270245.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 22586358 + ... + 22586381.

It is an arithmetic number, because the mean of its divisors is an integer number (105403060).

Almost surely, 2^542072868 is an apocalyptic number.

It is an amenable number.

542072868 is an abundant number, since it is smaller than the sum of its proper divisors (722763852).

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

542072868 is a wasteful number, since it uses less digits than its factorization.

542072868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45172746 (or 45172744 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 542072868 is about 23282.4583753520. The cubic root of 542072868 is about 815.3659229761.

It can be divided in two parts, 54207 and 2868, that added together give a palindrome (57075).

The spelling of 542072868 in words is "five hundred forty-two million, seventy-two thousand, eight hundred sixty-eight".