542450871 has 8 divisors (see below), whose sum is σ = 803630960. Its totient is φ = 361633896.

The previous prime is 542450861. The next prime is 542450921. The reversal of 542450871 is 178054245.

542450871 is a `hidden beast` number, since 542 + 45 + 0 + 8 + 71 = 666.

It is not a de Polignac number, because 542450871 - 2²⁷ = 408233143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542450801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10045360 + ... + 10045413.

It is an arithmetic number, because the mean of its divisors is an integer number (100453870).

Almost surely, 2^542450871 is an apocalyptic number.

542450871 is a deficient number, since it is larger than the sum of its proper divisors (261180089).

542450871 is a wasteful number, since it uses less digits than its factorization.

542450871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20090782 (or 20090776 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 542450871 is about 23290.5747245533. The cubic root of 542450871 is about 815.5554049748. Note that the first 3 decimals are identical.

The spelling of 542450871 in words is "five hundred forty-two million, four hundred fifty thousand, eight hundred seventy-one".