242511664 has 20 divisors (see below), whose sum is σ = 497506104. Its totient is φ = 114123008.

The previous prime is 242511637. The next prime is 242511671. The reversal of 242511664 is 466115242.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445522 + ... + 446065.

Almost surely, 2^242511664 is an apocalyptic number.

It is an amenable number.

242511664 is an abundant number, since it is smaller than the sum of its proper divisors (254994440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242511664 is a wasteful number, since it uses less digits than its factorization.

242511664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891612 (or 891606 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 242511664 is about 15572.7860063638. The cubic root of 242511664 is about 623.6068502012.

The spelling of 242511664 in words is "two hundred forty-two million, five hundred eleven thousand, six hundred sixty-four".