542628243 has 12 divisors (see below), whose sum is σ = 795495688. Its totient is φ = 356352480.

The previous prime is 542628241. The next prime is 542628263. The reversal of 542628243 is 342826245.

542628243 is a `hidden beast` number, since 5 + 4 + 2 + 628 + 24 + 3 = 666.

542628243 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 542628243 - 2¹ = 542628241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542628198 and 542628207.

It is not an unprimeable number, because it can be changed into a prime (542628241) 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, 449338 + ... + 450543.

Almost surely, 2^542628243 is an apocalyptic number.

542628243 is a deficient number, since it is larger than the sum of its proper divisors (252867445).

542628243 is a wasteful number, since it uses less digits than its factorization.

542628243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899954 (or 899951 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 542628243 is about 23294.3822197542. The cubic root of 542628243 is about 815.6442860988.

The spelling of 542628243 in words is "five hundred forty-two million, six hundred twenty-eight thousand, two hundred forty-three".