242220520 has 16 divisors (see below), whose sum is σ = 544996260. Its totient is φ = 96888192.

The previous prime is 242220491. The next prime is 242220571. The reversal of 242220520 is 25022242.

242220520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 239073444 + 3147076 = 15462^2 + 1774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027717 + ... + 3027796.

Almost surely, 2^242220520 is an apocalyptic number.

242220520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242220520 is an abundant number, since it is smaller than the sum of its proper divisors (302775740).

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

242220520 is a wasteful number, since it uses less digits than its factorization.

242220520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055524 (or 6055520 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 242220520 is about 15563.4353534173. The cubic root of 242220520 is about 623.3571960959.

Adding to 242220520 its reverse (25022242), we get a palindrome (267242762).

The spelling of 242220520 in words is "two hundred forty-two million, two hundred twenty thousand, five hundred twenty".