542238920 has 32 divisors (see below), whose sum is σ = 1220814720. Its totient is φ = 216757440.

The previous prime is 542238913. The next prime is 542238937. The reversal of 542238920 is 29832245.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79235 + ... + 85805.

It is an arithmetic number, because the mean of its divisors is an integer number (38150460).

Almost surely, 2^542238920 is an apocalyptic number.

It is an amenable number.

542238920 is an abundant number, since it is smaller than the sum of its proper divisors (678575800).

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

542238920 is a wasteful number, since it uses less digits than its factorization.

542238920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8645 (or 8641 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 542238920 is about 23286.0241346607. The cubic root of 542238920 is about 815.4491708982.

The spelling of 542238920 in words is "five hundred forty-two million, two hundred thirty-eight thousand, nine hundred twenty".