420127242 has 16 divisors (see below), whose sum is σ = 850379040. Its totient is φ = 138354992.

The previous prime is 420127207. The next prime is 420127249. The reversal of 420127242 is 242721024.

It is not an unprimeable number, because it can be changed into a prime (420127249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421317 + ... + 422312.

It is an arithmetic number, because the mean of its divisors is an integer number (53148690).

Almost surely, 2^420127242 is an apocalyptic number.

420127242 is an abundant number, since it is smaller than the sum of its proper divisors (430251798).

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

420127242 is a wasteful number, since it uses less digits than its factorization.

420127242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843717.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 420127242 is about 20497.0056837578. The cubic root of 420127242 is about 748.9628579986.

Adding to 420127242 its reverse (242721024), we get a palindrome (662848266).

The spelling of 420127242 in words is "four hundred twenty million, one hundred twenty-seven thousand, two hundred forty-two".