242489574 has 12 divisors (see below), whose sum is σ = 525394116. Its totient is φ = 80829852.

The previous prime is 242489573. The next prime is 242489593. The reversal of 242489574 is 475984242.

242489574 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242489573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6735804 + ... + 6735839.

It is an arithmetic number, because the mean of its divisors is an integer number (43782843).

Almost surely, 2^242489574 is an apocalyptic number.

242489574 is an abundant number, since it is smaller than the sum of its proper divisors (282904542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242489574 is a wasteful number, since it uses less digits than its factorization.

242489574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13471651 (or 13471648 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 242489574 is about 15572.0767401140. The cubic root of 242489574 is about 623.5879151757.

The spelling of 242489574 in words is "two hundred forty-two million, four hundred eighty-nine thousand, five hundred seventy-four".