242699657 has 8 divisors (see below), whose sum is σ = 253416384. Its totient is φ = 231996688.

The previous prime is 242699609. The next prime is 242699659. The reversal of 242699657 is 756996242.

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

It is a cyclic number.

It is not a de Polignac number, because 242699657 - 2⁶ = 242699593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242699659) 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, 51398 + ... + 55920.

It is an arithmetic number, because the mean of its divisors is an integer number (31677048).

Almost surely, 2^242699657 is an apocalyptic number.

It is an amenable number.

242699657 is a deficient number, since it is larger than the sum of its proper divisors (10716727).

242699657 is a wasteful number, since it uses less digits than its factorization.

242699657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6879.

The product of its digits is 1632960, while the sum is 50.

The square root of 242699657 is about 15578.8207833584. The cubic root of 242699657 is about 623.7679468413.

The spelling of 242699657 in words is "two hundred forty-two million, six hundred ninety-nine thousand, six hundred fifty-seven".