242420436 has 18 divisors (see below), whose sum is σ = 612785082. Its totient is φ = 80806800.

The previous prime is 242420419. The next prime is 242420441. The reversal of 242420436 is 634024242.

242420436 is a `hidden beast` number, since 2 + 424 + 204 + 36 = 666.

242420436 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 only one way, i.e., 126427536 + 115992900 = 11244^2 + 10770^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3366915 + ... + 3366986.

Almost surely, 2^242420436 is an apocalyptic number.

It is an amenable number.

242420436 is an abundant number, since it is smaller than the sum of its proper divisors (370364646).

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

242420436 is a wasteful number, since it uses less digits than its factorization.

242420436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6733911 (or 6733906 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 242420436 is about 15569.8566467389. The cubic root of 242420436 is about 623.5286442846.

Adding to 242420436 its reverse (634024242), we get a palindrome (876444678).

The spelling of 242420436 in words is "two hundred forty-two million, four hundred twenty thousand, four hundred thirty-six".