242315644 has 24 divisors (see below), whose sum is σ = 433984320. Its totient is φ = 118331136.

The previous prime is 242315641. The next prime is 242315659. The reversal of 242315644 is 446513242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242315641) 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, 114952 + ... + 117040.

It is an arithmetic number, because the mean of its divisors is an integer number (18082680).

Almost surely, 2^242315644 is an apocalyptic number.

It is an amenable number.

242315644 is a deficient number, since it is larger than the sum of its proper divisors (191668676).

242315644 is a wasteful number, since it uses less digits than its factorization.

242315644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2755 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 242315644 is about 15566.4910625356. The cubic root of 242315644 is about 623.4387863061.

Adding to 242315644 its reverse (446513242), we get a palindrome (688828886).

The spelling of 242315644 in words is "two hundred forty-two million, three hundred fifteen thousand, six hundred forty-four".