242889450 has 96 divisors (see below), whose sum is σ = 619008000. Its totient is φ = 63011520.

The previous prime is 242889403. The next prime is 242889461. The reversal of 242889450 is 54988242.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1220451 + ... + 1220649.

It is an arithmetic number, because the mean of its divisors is an integer number (6448000).

Almost surely, 2^242889450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242889450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309504000).

242889450 is an abundant number, since it is smaller than the sum of its proper divisors (376118550).

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

242889450 is a wasteful number, since it uses less digits than its factorization.

242889450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 242889450 is about 15584.9109718343. The cubic root of 242889450 is about 623.9305015876.

The spelling of 242889450 in words is "two hundred forty-two million, eight hundred eighty-nine thousand, four hundred fifty".