242427615 has 16 divisors (see below), whose sum is σ = 389004000. Its totient is φ = 128921472.

The previous prime is 242427611. The next prime is 242427623. The reversal of 242427615 is 516724242.

It is not a de Polignac number, because 242427615 - 2² = 242427611 is a prime.

It is a super-2 number, since 2×242427615² = 117542297029176450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242427611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17920 + ... + 28389.

It is an arithmetic number, because the mean of its divisors is an integer number (24312750).

Almost surely, 2^242427615 is an apocalyptic number.

242427615 is a deficient number, since it is larger than the sum of its proper divisors (146576385).

242427615 is a wasteful number, since it uses less digits than its factorization.

242427615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46666.

The product of its digits is 26880, while the sum is 33.

The square root of 242427615 is about 15570.0871866538. The cubic root of 242427615 is about 623.5347992497.

The spelling of 242427615 in words is "two hundred forty-two million, four hundred twenty-seven thousand, six hundred fifteen".