542643226 has 8 divisors (see below), whose sum is σ = 815036724. Its totient is φ = 270964320.

The previous prime is 542643193. The next prime is 542643229. The reversal of 542643226 is 622346245.

It can be written as a sum of positive squares in 2 ways, for example, as 420209001 + 122434225 = 20499^2 + 11065^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 542643191 and 542643200.

It is not an unprimeable number, because it can be changed into a prime (542643229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176745 + ... + 179788.

Almost surely, 2^542643226 is an apocalyptic number.

542643226 is a deficient number, since it is larger than the sum of its proper divisors (272393498).

542643226 is a wasteful number, since it uses less digits than its factorization.

542643226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357296.

The product of its digits is 69120, while the sum is 34.

The square root of 542643226 is about 23294.7038186795. The cubic root of 542643226 is about 815.6517931941.

The spelling of 542643226 in words is "five hundred forty-two million, six hundred forty-three thousand, two hundred twenty-six".