242552220 has 96 divisors (see below), whose sum is σ = 692428800. Its totient is φ = 63431424.

The previous prime is 242552213. The next prime is 242552239. The reversal of 242552220 is 22255242.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1059066 + ... + 1059294.

It is an arithmetic number, because the mean of its divisors is an integer number (7212800).

Almost surely, 2^242552220 is an apocalyptic number.

242552220 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 242552220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346214400).

242552220 is an abundant number, since it is smaller than the sum of its proper divisors (449876580).

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

242552220 is a wasteful number, since it uses less digits than its factorization.

242552220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 242552220 is about 15574.0880952947. The cubic root of 242552220 is about 623.6416108518.

It can be divided in two parts, 2425 and 52220, that added together give a palindrome (54645).

The spelling of 242552220 in words is "two hundred forty-two million, five hundred fifty-two thousand, two hundred twenty".