242217450 has 72 divisors (see below), whose sum is σ = 654098016. Its totient is φ = 64260000.

The previous prime is 242217449. The next prime is 242217467. The reversal of 242217450 is 54712242.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93675 + ... + 96225.

Almost surely, 2^242217450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242217450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327049008).

242217450 is an abundant number, since it is smaller than the sum of its proper divisors (411880566).

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

242217450 is a wasteful number, since it uses less digits than its factorization.

242217450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 242217450 is about 15563.3367244945. The cubic root of 242217450 is about 623.3545625251.

Adding to 242217450 its reverse (54712242), we get a palindrome (296929692).

The spelling of 242217450 in words is "two hundred forty-two million, two hundred seventeen thousand, four hundred fifty".