242668564 has 6 divisors (see below), whose sum is σ = 424669994. Its totient is φ = 121334280.

The previous prime is 242668537. The next prime is 242668577. The reversal of 242668564 is 465866242.

242668564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 181171600 + 61496964 = 13460^2 + 7842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 242668564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30333567 + ... + 30333574.

Almost surely, 2^242668564 is an apocalyptic number.

It is an amenable number.

242668564 is a deficient number, since it is larger than the sum of its proper divisors (182001430).

242668564 is a wasteful number, since it uses less digits than its factorization.

242668564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60667145 (or 60667143 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 242668564 is about 15577.8228260563. The cubic root of 242668564 is about 623.7413080932.

The spelling of 242668564 in words is "two hundred forty-two million, six hundred sixty-eight thousand, five hundred sixty-four".