242440023 has 8 divisors (see below), whose sum is σ = 369432448. Its totient is φ = 138537144.

The previous prime is 242439991. The next prime is 242440039. The reversal of 242440023 is 320044242.

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

It is not a de Polignac number, because 242440023 - 2⁵ = 242439991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 11544763 = 242440023 / (2 + 4 + 2 + 4 + 4 + 0 + 0 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242440223) 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, 5772361 + ... + 5772402.

It is an arithmetic number, because the mean of its divisors is an integer number (46179056).

Almost surely, 2^242440023 is an apocalyptic number.

242440023 is a deficient number, since it is larger than the sum of its proper divisors (126992425).

242440023 is a wasteful number, since it uses less digits than its factorization.

242440023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11544773.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 242440023 is about 15570.4856378984. The cubic root of 242440023 is about 623.5454370474.

Adding to 242440023 its reverse (320044242), we get a palindrome (562484265).

The spelling of 242440023 in words is "two hundred forty-two million, four hundred forty thousand, twenty-three".