242398825426 has 4 divisors (see below), whose sum is σ = 363598238142. Its totient is φ = 121199412712.

The previous prime is 242398825421. The next prime is 242398825433. The reversal of 242398825426 is 624528893242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624528893242 = 2 ⋅312264446621.

It can be written as a sum of positive squares in only one way, i.e., 239266744201 + 3132081225 = 489149^2 + 55965^2 .

It is not an unprimeable number, because it can be changed into a prime (242398825421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60599706355 + ... + 60599706358.

Almost surely, 2^242398825426 is an apocalyptic number.

242398825426 is a deficient number, since it is larger than the sum of its proper divisors (121199412716).

242398825426 is a wasteful number, since it uses less digits than its factorization.

242398825426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121199412715.

The product of its digits is 13271040, while the sum is 55.

The spelling of 242398825426 in words is "two hundred forty-two billion, three hundred ninety-eight million, eight hundred twenty-five thousand, four hundred twenty-six".