420000242 has 8 divisors (see below), whose sum is σ = 630120432. Its totient is φ = 209960100.

The previous prime is 420000233. The next prime is 420000271. The reversal of 420000242 is 242000024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4484 + ... + 29327.

It is an arithmetic number, because the mean of its divisors is an integer number (78765054).

Almost surely, 2^420000242 is an apocalyptic number.

420000242 is a deficient number, since it is larger than the sum of its proper divisors (210120190).

420000242 is a wasteful number, since it uses less digits than its factorization.

420000242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40024.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 420000242 is about 20493.9074361138. The cubic root of 420000242 is about 748.8873825557.

Adding to 420000242 its reverse (242000024), we get a palindrome (662000266).

It can be divided in two parts, 42000024 and 2, that multiplied together give a palindrome (84000048).

The spelling of 420000242 in words is "four hundred twenty million, two hundred forty-two", and thus it is an aban number.