542195766 has 96 divisors (see below), whose sum is σ = 1398079488. Its totient is φ = 148599360.

The previous prime is 542195749. The next prime is 542195779. The reversal of 542195766 is 667591245.

542195766 is a `hidden beast` number, since 54 + 21 + 9 + 576 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495516 + ... + 496608.

It is an arithmetic number, because the mean of its divisors is an integer number (14563328).

Almost surely, 2^542195766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542195766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699039744).

542195766 is an abundant number, since it is smaller than the sum of its proper divisors (855883722).

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

542195766 is a wasteful number, since it uses less digits than its factorization.

542195766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 1263 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 542195766 is about 23285.0975089219. The cubic root of 542195766 is about 815.4275378592.

The spelling of 542195766 in words is "five hundred forty-two million, one hundred ninety-five thousand, seven hundred sixty-six".