242404515 has 32 divisors (see below), whose sum is σ = 432878400. Its totient is φ = 128701440.

The previous prime is 242404483. The next prime is 242404517. The reversal of 242404515 is 515404242.

242404515 is a `hidden beast` number, since 242 + 404 + 5 + 15 = 666.

It is not a de Polignac number, because 242404515 - 2⁵ = 242404483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (242404517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26995 + ... + 34835.

It is an arithmetic number, because the mean of its divisors is an integer number (13527450).

Almost surely, 2^242404515 is an apocalyptic number.

242404515 is a deficient number, since it is larger than the sum of its proper divisors (190473885).

242404515 is a wasteful number, since it uses less digits than its factorization.

242404515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8084 (or 8078 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 242404515 is about 15569.3453619605. The cubic root of 242404515 is about 623.5149938720.

Adding to 242404515 its reverse (515404242), we get a palindrome (757808757).

The spelling of 242404515 in words is "two hundred forty-two million, four hundred four thousand, five hundred fifteen".