242345420 has 24 divisors (see below), whose sum is σ = 520762704. Its totient is φ = 94683456.

The previous prime is 242345413. The next prime is 242345429. The reversal of 242345420 is 24543242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 242345420.

It is not an unprimeable number, because it can be changed into a prime (242345429) 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, 140039 + ... + 141758.

It is an arithmetic number, because the mean of its divisors is an integer number (21698446).

Almost surely, 2^242345420 is an apocalyptic number.

242345420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242345420 is an abundant number, since it is smaller than the sum of its proper divisors (278417284).

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

242345420 is a wasteful number, since it uses less digits than its factorization.

242345420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281849 (or 281847 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 242345420 is about 15567.4474465148. The cubic root of 242345420 is about 623.4643215304.

Adding to 242345420 its reverse (24543242), we get a palindrome (266888662).

The spelling of 242345420 in words is "two hundred forty-two million, three hundred forty-five thousand, four hundred twenty".