242444240 has 20 divisors (see below), whose sum is σ = 563683044. Its totient is φ = 96977664.

The previous prime is 242444179. The next prime is 242444243. The reversal of 242444240 is 42444242.

It can be written as a sum of positive squares in 2 ways, for example, as 103958416 + 138485824 = 10196^2 + 11768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242444243) 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, 1515197 + ... + 1515356.

Almost surely, 2^242444240 is an apocalyptic number.

242444240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242444240 is an abundant number, since it is smaller than the sum of its proper divisors (321238804).

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

242444240 is a wasteful number, since it uses less digits than its factorization.

242444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030566 (or 3030560 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 242444240 is about 15570.6210537666. The cubic root of 242444240 is about 623.5490523414.

Adding to 242444240 its reverse (42444242), we get a palindrome (284888482).

It can be divided in two parts, 2424 and 44240, that added together give a palindrome (46664).

The spelling of 242444240 in words is "two hundred forty-two million, four hundred forty-four thousand, two hundred forty".