242307644 has 24 divisors (see below), whose sum is σ = 445221840. Its totient is φ = 115226496.

The previous prime is 242307641. The next prime is 242307683. The reversal of 242307644 is 446703242.

242307644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 242307644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242307641) 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, 7817 + ... + 23360.

It is an arithmetic number, because the mean of its divisors is an integer number (18550910).

Almost surely, 2^242307644 is an apocalyptic number.

It is an amenable number.

242307644 is a deficient number, since it is larger than the sum of its proper divisors (202914196).

242307644 is a wasteful number, since it uses less digits than its factorization.

242307644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31277 (or 31275 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 242307644 is about 15566.2340982011. The cubic root of 242307644 is about 623.4319253304.

The spelling of 242307644 in words is "two hundred forty-two million, three hundred seven thousand, six hundred forty-four".