242399663 has 12 divisors (see below), whose sum is σ = 280465080. Its totient is φ = 208763280.

The previous prime is 242399629. The next prime is 242399669. The reversal of 242399663 is 366993242.

It is a de Polignac number, because none of the positive numbers 2^k-242399663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242399669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50420 + ... + 55017.

It is an arithmetic number, because the mean of its divisors is an integer number (23372090).

Almost surely, 2^242399663 is an apocalyptic number.

242399663 is a deficient number, since it is larger than the sum of its proper divisors (38065417).

242399663 is a wasteful number, since it uses less digits than its factorization.

242399663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105478 (or 105467 counting only the distinct ones).

The product of its digits is 419904, while the sum is 44.

The square root of 242399663 is about 15569.1895421695. The cubic root of 242399663 is about 623.5108337255.

The spelling of 242399663 in words is "two hundred forty-two million, three hundred ninety-nine thousand, six hundred sixty-three".