242144405 has 8 divisors (see below), whose sum is σ = 290659200. Its totient is φ = 193658256.

The previous prime is 242144389. The next prime is 242144407. The reversal of 242144405 is 504441242.

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 242144405 - 2⁴ = 242144389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242144407) 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, 22976 + ... + 31814.

It is an arithmetic number, because the mean of its divisors is an integer number (36332400).

Almost surely, 2^242144405 is an apocalyptic number.

It is an amenable number.

242144405 is a deficient number, since it is larger than the sum of its proper divisors (48514795).

242144405 is an equidigital number, since it uses as much as digits as its factorization.

242144405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14323.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 242144405 is about 15560.9898464076. The cubic root of 242144405 is about 623.2918949896.

Adding to 242144405 its reverse (504441242), we get a palindrome (746585647).

The spelling of 242144405 in words is "two hundred forty-two million, one hundred forty-four thousand, four hundred five".