420207275 has 24 divisors (see below), whose sum is σ = 553625280. Its totient is φ = 315292160.

The previous prime is 420207269. The next prime is 420207289. The reversal of 420207275 is 572702024.

It is not a de Polignac number, because 420207275 - 2¹⁶ = 420141739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133166 + ... + 136284.

It is an arithmetic number, because the mean of its divisors is an integer number (23067720).

Almost surely, 2^420207275 is an apocalyptic number.

420207275 is a deficient number, since it is larger than the sum of its proper divisors (133418005).

420207275 is a wasteful number, since it uses less digits than its factorization.

420207275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463 (or 3458 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 420207275 is about 20498.9579003422. The cubic root of 420207275 is about 749.0104133839.

Adding to 420207275 its reverse (572702024), we get a palindrome (992909299).

The spelling of 420207275 in words is "four hundred twenty million, two hundred seven thousand, two hundred seventy-five".