242620240 has 40 divisors (see below), whose sum is σ = 564818760. Its totient is φ = 96923136.

The previous prime is 242620237. The next prime is 242620267. The reversal of 242620240 is 42026242.

242620240 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 4 ways, for example, as 8464 + 242611776 = 92^2 + 15576^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84102 + ... + 86938.

It is an arithmetic number, because the mean of its divisors is an integer number (14120469).

Almost surely, 2^242620240 is an apocalyptic number.

242620240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242620240 is an abundant number, since it is smaller than the sum of its proper divisors (322198520).

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

242620240 is a wasteful number, since it uses less digits than its factorization.

242620240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919 (or 3913 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 242620240 is about 15576.2716976817. The cubic root of 242620240 is about 623.6999022686.

Adding to 242620240 its reverse (42026242), we get a palindrome (284646482).

It can be divided in two parts, 2426202 and 40, that added together give a palindrome (2426242).

The spelling of 242620240 in words is "two hundred forty-two million, six hundred twenty thousand, two hundred forty".