542274778 has 8 divisors (see below), whose sum is σ = 813535668. Its totient is φ = 271096224.

The previous prime is 542274739. The next prime is 542274781. The reversal of 542274778 is 877472245.

542274778 is a nontrivial binomial coefficient, being equal to C(32933, 2).

It can be written as a sum of positive squares in 2 ways, for example, as 442134729 + 100140049 = 21027^2 + 10007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1 + ... + 32932.

Almost surely, 2^542274778 is an apocalyptic number.

542274778 is the 32932-nd triangular number.

542274778 is the 10978-th centered nonagonal number.

542274778 is a deficient number, since it is larger than the sum of its proper divisors (271260890).

542274778 is a wasteful number, since it uses less digits than its factorization.

542274778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41168.

The product of its digits is 878080, while the sum is 46.

The square root of 542274778 is about 23286.7940687421. The cubic root of 542274778 is about 815.4671455897.

It can be divided in two parts, 5422 and 74778, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 542274778 in words is "five hundred forty-two million, two hundred seventy-four thousand, seven hundred seventy-eight".