242430215 has 32 divisors (see below), whose sum is σ = 316094400. Its totient is φ = 177914880.

The previous prime is 242430211. The next prime is 242430229. The reversal of 242430215 is 512034242.

It is a happy number.

242430215 is nontrivially palindromic in base 9.

242430215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242430215 - 2² = 242430211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242430211) 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, 447845 + ... + 448385.

It is an arithmetic number, because the mean of its divisors is an integer number (9877950).

Almost surely, 2^242430215 is an apocalyptic number.

242430215 is a deficient number, since it is larger than the sum of its proper divisors (73664185).

242430215 is a wasteful number, since it uses less digits than its factorization.

242430215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 242430215 is about 15570.1706798609. The cubic root of 242430215 is about 623.5370283476.

Adding to 242430215 its reverse (512034242), we get a palindrome (754464457).

The spelling of 242430215 in words is "two hundred forty-two million, four hundred thirty thousand, two hundred fifteen".