242321420 has 48 divisors (see below), whose sum is σ = 573060096. Its totient is φ = 85272000.

The previous prime is 242321413. The next prime is 242321449. The reversal of 242321420 is 24123242.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 242321392 and 242321401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10946 + ... + 24585.

It is an arithmetic number, because the mean of its divisors is an integer number (11938752).

Almost surely, 2^242321420 is an apocalyptic number.

242321420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242321420 is an abundant number, since it is smaller than the sum of its proper divisors (330738676).

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

242321420 is a wasteful number, since it uses less digits than its factorization.

242321420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35582 (or 35580 counting only the distinct ones).

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

The square root of 242321420 is about 15566.6765881482. The cubic root of 242321420 is about 623.4437398366.

Adding to 242321420 its reverse (24123242), we get a palindrome (266444662).

It can be divided in two parts, 24232 and 1420, that added together give a palindrome (25652).

The spelling of 242321420 in words is "two hundred forty-two million, three hundred twenty-one thousand, four hundred twenty".