242420039862 has 128 divisors (see below), whose sum is σ = 652464046080. Its totient is φ = 57989658240.

The previous prime is 242420039861. The next prime is 242420039891. The reversal of 242420039862 is 268930024242.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242420039861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2590663 + ... + 2682605.

It is an arithmetic number, because the mean of its divisors is an integer number (5097375360).

Almost surely, 2^242420039862 is an apocalyptic number.

242420039862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 242420039862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326232023040).

242420039862 is an abundant number, since it is smaller than the sum of its proper divisors (410044006218).

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

242420039862 is a wasteful number, since it uses less digits than its factorization.

242420039862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92418.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 242420039862 in words is "two hundred forty-two billion, four hundred twenty million, thirty-nine thousand, eight hundred sixty-two".