242398 has 8 divisors (see below), whose sum is σ = 391608. Its totient is φ = 111864.

The previous prime is 242393. The next prime is 242399. The reversal of 242398 is 893242.

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

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242393) by changing a digit.

242398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4636 + ... + 4687.

It is an arithmetic number, because the mean of its divisors is an integer number (48951).

2²⁴²³⁹⁸ is an apocalyptic number.

242398 is a deficient number, since it is larger than the sum of its proper divisors (149210).

242398 is a wasteful number, since it uses less digits than its factorization.

242398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9338.

The product of its digits is 3456, while the sum is 28.

The square root of 242398 is about 492.3393138883. The cubic root of 242398 is about 62.3509407842.

The spelling of 242398 in words is "two hundred forty-two thousand, three hundred ninety-eight".