242421045020 has 192 divisors, whose sum is σ = 657407923200. Its totient is φ = 72863293440.

The previous prime is 242421045019. The next prime is 242421045047. The reversal of 242421045020 is 20540124242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41486219 + ... + 41492061.

It is an arithmetic number, because the mean of its divisors is an integer number (3423999600).

Almost surely, 2^242421045020 is an apocalyptic number.

242421045020 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 242421045020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328703961600).

242421045020 is an abundant number, since it is smaller than the sum of its proper divisors (414986878180).

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

242421045020 is a wasteful number, since it uses less digits than its factorization.

242421045020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828 (or 6826 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 242421045020 its reverse (20540124242), we get a palindrome (262961169262).

The spelling of 242421045020 in words is "two hundred forty-two billion, four hundred twenty-one million, forty-five thousand, twenty".