242889398 has 4 divisors (see below), whose sum is σ = 364334100. Its totient is φ = 121444698.

The previous prime is 242889391. The next prime is 242889403. The reversal of 242889398 is 893988242.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242889391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60722348 + ... + 60722351.

It is an arithmetic number, because the mean of its divisors is an integer number (91083525).

Almost surely, 2^242889398 is an apocalyptic number.

242889398 is a deficient number, since it is larger than the sum of its proper divisors (121444702).

242889398 is a wasteful number, since it uses less digits than its factorization.

242889398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121444701.

The product of its digits is 1990656, while the sum is 53.

The square root of 242889398 is about 15584.9093035539. The cubic root of 242889398 is about 623.9304570620.

The spelling of 242889398 in words is "two hundred forty-two million, eight hundred eighty-nine thousand, three hundred ninety-eight".