4242420042 has 32 divisors (see below), whose sum is σ = 9728169984. Its totient is φ = 1208218800.

The previous prime is 4242419999. The next prime is 4242420089. The reversal of 4242420042 is 2400242424.

It is a junction number, because it is equal to n+sod(n) for n = 4242419994 and 4242420021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149334 + ... + 175457.

It is an arithmetic number, because the mean of its divisors is an integer number (304005312).

Almost surely, 2^4242420042 is an apocalyptic number.

4242420042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4242420042 is an abundant number, since it is smaller than the sum of its proper divisors (5485749942).

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

4242420042 is a wasteful number, since it uses less digits than its factorization.

4242420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325114.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 4242420042 is about 65133.8624833504. The cubic root of 4242420042 is about 1618.8423424173.

Adding to 4242420042 its reverse (2400242424), we get a palindrome (6642662466).

The spelling of 4242420042 in words is "four billion, two hundred forty-two million, four hundred twenty thousand, forty-two".