242540045 has 16 divisors (see below), whose sum is σ = 318790080. Its totient is φ = 175680000.

The previous prime is 242540009. The next prime is 242540057. The reversal of 242540045 is 540045242.

It is not a de Polignac number, because 242540045 - 2⁶ = 242539981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242539996 and 242540023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5021 + ... + 22589.

It is an arithmetic number, because the mean of its divisors is an integer number (19924380).

Almost surely, 2^242540045 is an apocalyptic number.

It is an amenable number.

242540045 is a deficient number, since it is larger than the sum of its proper divisors (76250035).

242540045 is a wasteful number, since it uses less digits than its factorization.

242540045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17836.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 242540045 is about 15573.6972167819. The cubic root of 242540045 is about 623.6311760354.

Adding to 242540045 its reverse (540045242), we get a palindrome (782585287).

The spelling of 242540045 in words is "two hundred forty-two million, five hundred forty thousand, forty-five".