242144564 has 12 divisors (see below), whose sum is σ = 432769344. Its totient is φ = 118496184.

The previous prime is 242144561. The next prime is 242144579. The reversal of 242144564 is 465441242.

It is a self number, because there is not a number n which added to its sum of digits gives 242144564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242144561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643814 + ... + 644189.

It is an arithmetic number, because the mean of its divisors is an integer number (36064112).

Almost surely, 2^242144564 is an apocalyptic number.

It is an amenable number.

242144564 is a deficient number, since it is larger than the sum of its proper divisors (190624780).

242144564 is a wasteful number, since it uses less digits than its factorization.

242144564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288054 (or 1288052 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 242144564 is about 15560.9949553362. The cubic root of 242144564 is about 623.2920314143.

The spelling of 242144564 in words is "two hundred forty-two million, one hundred forty-four thousand, five hundred sixty-four".