242225420 has 48 divisors (see below), whose sum is σ = 532986048. Its totient is φ = 92294400.

The previous prime is 242225411. The next prime is 242225441. The reversal of 242225420 is 24522242.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126470 + ... + 128370.

It is an arithmetic number, because the mean of its divisors is an integer number (11103876).

Almost surely, 2^242225420 is an apocalyptic number.

242225420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242225420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266493024).

242225420 is an abundant number, since it is smaller than the sum of its proper divisors (290760628).

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

242225420 is a wasteful number, since it uses less digits than its factorization.

242225420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 242225420 is about 15563.5927728786. The cubic root of 242225420 is about 623.3613994690.

Adding to 242225420 its reverse (24522242), we get a palindrome (266747662).

The spelling of 242225420 in words is "two hundred forty-two million, two hundred twenty-five thousand, four hundred twenty".