242533645 has 8 divisors (see below), whose sum is σ = 308160504. Its totient is φ = 182613504.

The previous prime is 242533639. The next prime is 242533649. The reversal of 242533645 is 546335242.

242533645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8168164 + 234365481 = 2858^2 + 15309^2 .

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 242533645 - 2³ = 242533637 is a prime.

It is a super-3 number, since 3×242533645³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242533645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242533649) 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, 1426584 + ... + 1426753.

It is an arithmetic number, because the mean of its divisors is an integer number (38520063).

Almost surely, 2^242533645 is an apocalyptic number.

It is an amenable number.

242533645 is a deficient number, since it is larger than the sum of its proper divisors (65626859).

242533645 is a wasteful number, since it uses less digits than its factorization.

242533645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853359.

The product of its digits is 86400, while the sum is 34.

The square root of 242533645 is about 15573.4917407754. The cubic root of 242533645 is about 623.6256906531.

Adding to 242533645 its reverse (546335242), we get a palindrome (788868887).

The spelling of 242533645 in words is "two hundred forty-two million, five hundred thirty-three thousand, six hundred forty-five".