42242203209 has 8 divisors (see below), whose sum is σ = 56323888192. Its totient is φ = 28160993520.

The previous prime is 42242203189. The next prime is 42242203229. The reversal of 42242203209 is 90230224224.

It is an interprime number because it is at equal distance from previous prime (42242203189) and next prime (42242203229).

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

It is not a de Polignac number, because 42242203209 - 2⁹ = 42242202697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42242203229) 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, 275499 + ... + 400479.

It is an arithmetic number, because the mean of its divisors is an integer number (7040486024).

Almost surely, 2^42242203209 is an apocalyptic number.

It is an amenable number.

42242203209 is a deficient number, since it is larger than the sum of its proper divisors (14081684983).

42242203209 is a wasteful number, since it uses less digits than its factorization.

42242203209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237647.

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 42242203209 in words is "forty-two billion, two hundred forty-two million, two hundred three thousand, two hundred nine".