242390199 has 16 divisors (see below), whose sum is σ = 342832608. Its totient is φ = 151805952.

The previous prime is 242390191. The next prime is 242390221. The reversal of 242390199 is 991093242.

It is not a de Polignac number, because 242390199 - 2³ = 242390191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242390191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25309 + ... + 33545.

It is an arithmetic number, because the mean of its divisors is an integer number (21427038).

Almost surely, 2^242390199 is an apocalyptic number.

242390199 is a deficient number, since it is larger than the sum of its proper divisors (100442409).

242390199 is a wasteful number, since it uses less digits than its factorization.

242390199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8834.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 242390199 is about 15568.8856055917. The cubic root of 242390199 is about 623.5027190506.

The spelling of 242390199 in words is "two hundred forty-two million, three hundred ninety thousand, one hundred ninety-nine".