420234271 has 16 divisors (see below), whose sum is σ = 458498880. Its totient is φ = 383546880.

The previous prime is 420234257. The next prime is 420234277. The reversal of 420234271 is 172432024.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 420234271 - 2¹¹ = 420232223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420234277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224881 + ... + 226741.

It is an arithmetic number, because the mean of its divisors is an integer number (28656180).

Almost surely, 2^420234271 is an apocalyptic number.

420234271 is a deficient number, since it is larger than the sum of its proper divisors (38264609).

420234271 is a wasteful number, since it uses less digits than its factorization.

420234271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 420234271 is about 20499.6163622640. The cubic root of 420234271 is about 749.0264529699.

Adding to 420234271 its reverse (172432024), we get a palindrome (592666295).

The spelling of 420234271 in words is "four hundred twenty million, two hundred thirty-four thousand, two hundred seventy-one".