542405871 has 12 divisors (see below), whose sum is σ = 895400272. Its totient is φ = 309946176.

The previous prime is 542405837. The next prime is 542405873. The reversal of 542405871 is 178504245.

542405871 is a `hidden beast` number, since 54 + 24 + 0 + 587 + 1 = 666.

542405871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 542405871 - 2⁶ = 542405807 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 (542405873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4304746 + ... + 4304871.

Almost surely, 2^542405871 is an apocalyptic number.

542405871 is a deficient number, since it is larger than the sum of its proper divisors (352994401).

542405871 is a wasteful number, since it uses less digits than its factorization.

542405871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8609630 (or 8609627 counting only the distinct ones).

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

The square root of 542405871 is about 23289.6086484939. The cubic root of 542405871 is about 815.5328523898.

The spelling of 542405871 in words is "five hundred forty-two million, four hundred five thousand, eight hundred seventy-one".