242134220 has 12 divisors (see below), whose sum is σ = 508481904. Its totient is φ = 96853680.

The previous prime is 242134187. The next prime is 242134223. The reversal of 242134220 is 22431242.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 12106711 = 242134220 / (2 + 4 + 2 + 1 + 3 + 4 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 242134192 and 242134201.

It is not an unprimeable number, because it can be changed into a prime (242134223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6053336 + ... + 6053375.

It is an arithmetic number, because the mean of its divisors is an integer number (42373492).

Almost surely, 2^242134220 is an apocalyptic number.

242134220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242134220 is an abundant number, since it is smaller than the sum of its proper divisors (266347684).

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

242134220 is a wasteful number, since it uses less digits than its factorization.

242134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12106720 (or 12106718 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242134220 is about 15560.6625822939. The cubic root of 242134220 is about 623.2831559661.

Adding to 242134220 its reverse (22431242), we get a palindrome (264565462).

The spelling of 242134220 in words is "two hundred forty-two million, one hundred thirty-four thousand, two hundred twenty".