542508866 has 16 divisors (see below), whose sum is σ = 876538368. Its totient is φ = 251090400.

The previous prime is 542508823. The next prime is 542508893. The reversal of 542508866 is 668805245.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188795 + ... + 191646.

It is an arithmetic number, because the mean of its divisors is an integer number (54783648).

Almost surely, 2^542508866 is an apocalyptic number.

542508866 is a deficient number, since it is larger than the sum of its proper divisors (334029502).

542508866 is a wasteful number, since it uses less digits than its factorization.

542508866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380497.

The product of its (nonzero) digits is 460800, while the sum is 44.

The square root of 542508866 is about 23291.8197228126. The cubic root of 542508866 is about 815.5844684057.

The spelling of 542508866 in words is "five hundred forty-two million, five hundred eight thousand, eight hundred sixty-six".