242969220 has 240 divisors, whose sum is σ = 836700480. Its totient is φ = 58662144.

The previous prime is 242969201. The next prime is 242969281. The reversal of 242969220 is 22969242.

It is a happy number.

242969220 is a `hidden beast` number, since 2 + 429 + 6 + 9 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1747911 + ... + 1748049.

It is an arithmetic number, because the mean of its divisors is an integer number (3486252).

Almost surely, 2^242969220 is an apocalyptic number.

242969220 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 242969220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418350240).

242969220 is an abundant number, since it is smaller than the sum of its proper divisors (593731260).

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

242969220 is a wasteful number, since it uses less digits than its factorization.

242969220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 242969220 is about 15587.4699678941. The cubic root of 242969220 is about 623.9987980746.

The spelling of 242969220 in words is "two hundred forty-two million, nine hundred sixty-nine thousand, two hundred twenty".