242669879 has 8 divisors (see below), whose sum is σ = 244008960. Its totient is φ = 241335000.

The previous prime is 242669831. The next prime is 242669887. The reversal of 242669879 is 978966242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242669879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242669879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242669579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233042 + ... + 234080.

It is an arithmetic number, because the mean of its divisors is an integer number (30501120).

Almost surely, 2^242669879 is an apocalyptic number.

242669879 is a deficient number, since it is larger than the sum of its proper divisors (1339081).

242669879 is a wasteful number, since it uses less digits than its factorization.

242669879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101.

The product of its digits is 2612736, while the sum is 53.

The square root of 242669879 is about 15577.8650334377. The cubic root of 242669879 is about 623.7424347579.

The spelling of 242669879 in words is "two hundred forty-two million, six hundred sixty-nine thousand, eight hundred seventy-nine".