242388733 has 4 divisors (see below), whose sum is σ = 243743040. Its totient is φ = 241034428.

The previous prime is 242388701. The next prime is 242388763. The reversal of 242388733 is 337883242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 337883242 = 2 ⋅168941621.

It is a cyclic number.

It is not a de Polignac number, because 242388733 - 2⁵ = 242388701 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242388763) 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, 676885 + ... + 677242.

It is an arithmetic number, because the mean of its divisors is an integer number (60935760).

Almost surely, 2^242388733 is an apocalyptic number.

It is an amenable number.

242388733 is a deficient number, since it is larger than the sum of its proper divisors (1354307).

242388733 is a wasteful number, since it uses less digits than its factorization.

242388733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354306.

The product of its digits is 193536, while the sum is 40.

The square root of 242388733 is about 15568.8385244372. The cubic root of 242388733 is about 623.5014620460.

The spelling of 242388733 in words is "two hundred forty-two million, three hundred eighty-eight thousand, seven hundred thirty-three".