242633291 has 4 divisors (see below), whose sum is σ = 242918592. Its totient is φ = 242347992.

The previous prime is 242633273. The next prime is 242633297. The reversal of 242633291 is 192336242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242633291 - 2¹⁸ = 242371147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242633297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141371 + ... + 143076.

It is an arithmetic number, because the mean of its divisors is an integer number (60729648).

Almost surely, 2^242633291 is an apocalyptic number.

242633291 is a deficient number, since it is larger than the sum of its proper divisors (285301).

242633291 is an equidigital number, since it uses as much as digits as its factorization.

242633291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285300.

The product of its digits is 15552, while the sum is 32.

The square root of 242633291 is about 15576.6906305544. The cubic root of 242633291 is about 623.7110853992.

The spelling of 242633291 in words is "two hundred forty-two million, six hundred thirty-three thousand, two hundred ninety-one".