542870209 has 8 divisors (see below), whose sum is σ = 623542400. Its totient is φ = 462977856.

The previous prime is 542870201. The next prime is 542870243. The reversal of 542870209 is 902078245.

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

It is a cyclic number.

It is not a de Polignac number, because 542870209 - 2³ = 542870201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542870201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193464 + ... + 196249.

It is an arithmetic number, because the mean of its divisors is an integer number (77942800).

Almost surely, 2^542870209 is an apocalyptic number.

It is an amenable number.

542870209 is a deficient number, since it is larger than the sum of its proper divisors (80672191).

542870209 is a wasteful number, since it uses less digits than its factorization.

542870209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389919.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 542870209 is about 23299.5752965585. The cubic root of 542870209 is about 815.7655040536.

The spelling of 542870209 in words is "five hundred forty-two million, eight hundred seventy thousand, two hundred nine".