242420440 has 16 divisors (see below), whose sum is σ = 545446080. Its totient is φ = 96968160.

The previous prime is 242420419. The next prime is 242420441. The reversal of 242420440 is 44024242.

242420440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242420441) 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, 3030216 + ... + 3030295.

It is an arithmetic number, because the mean of its divisors is an integer number (34090380).

Almost surely, 2^242420440 is an apocalyptic number.

242420440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242420440 is an abundant number, since it is smaller than the sum of its proper divisors (303025640).

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

242420440 is a wasteful number, since it uses less digits than its factorization.

242420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060522 (or 6060518 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 242420440 is about 15569.8567751922. The cubic root of 242420440 is about 623.5286477140.

Adding to 242420440 its reverse (44024242), we get a palindrome (286444682).

The spelling of 242420440 in words is "two hundred forty-two million, four hundred twenty thousand, four hundred forty".