242621224140 has 48 divisors (see below), whose sum is σ = 688907600640. Its totient is φ = 63787738560.

The previous prime is 242621224093. The next prime is 242621224141. The reversal of 242621224140 is 41422126242.

242621224140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 242621224098 and 242621224107.

It is not an unprimeable number, because it can be changed into a prime (242621224141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28472410 + ... + 28480929.

It is an arithmetic number, because the mean of its divisors is an integer number (14352241680).

Almost surely, 2^242621224140 is an apocalyptic number.

242621224140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242621224140 is an abundant number, since it is smaller than the sum of its proper divisors (446286376500).

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

242621224140 is a wasteful number, since it uses less digits than its factorization.

242621224140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56953422 (or 56953420 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The spelling of 242621224140 in words is "two hundred forty-two billion, six hundred twenty-one million, two hundred twenty-four thousand, one hundred forty".