242552321 has 8 divisors (see below), whose sum is σ = 265457088. Its totient is φ = 219790000.

The previous prime is 242552291. The next prime is 242552333. The reversal of 242552321 is 123255242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242552321 - 2²² = 238358017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242552341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32030 + ... + 38871.

It is an arithmetic number, because the mean of its divisors is an integer number (33182136).

Almost surely, 2^242552321 is an apocalyptic number.

It is an amenable number.

242552321 is a deficient number, since it is larger than the sum of its proper divisors (22904767).

242552321 is a wasteful number, since it uses less digits than its factorization.

242552321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71223.

The product of its digits is 4800, while the sum is 26.

The square root of 242552321 is about 15574.0913378598. The cubic root of 242552321 is about 623.6416974144.

The spelling of 242552321 in words is "two hundred forty-two million, five hundred fifty-two thousand, three hundred twenty-one".