542561742 has 24 divisors (see below), whose sum is σ = 1197732744. Its totient is φ = 177441264.

The previous prime is 542561741. The next prime is 542561753. The reversal of 542561742 is 247165245.

It is a happy number.

542561742 is a `hidden beast` number, since 54 + 2 + 561 + 7 + 42 = 666.

542561742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 542561697 and 542561706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542561741) 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, 283408 + ... + 285315.

It is an arithmetic number, because the mean of its divisors is an integer number (49905531).

Almost surely, 2^542561742 is an apocalyptic number.

542561742 is an abundant number, since it is smaller than the sum of its proper divisors (655171002).

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

542561742 is a wasteful number, since it uses less digits than its factorization.

542561742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568784 (or 568781 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 542561742 is about 23292.9547717760. The cubic root of 542561742 is about 815.6109647120.

The spelling of 542561742 in words is "five hundred forty-two million, five hundred sixty-one thousand, seven hundred forty-two".