420020411 has 16 divisors (see below), whose sum is σ = 476622144. Its totient is φ = 367893504.

The previous prime is 420020407. The next prime is 420020413. The reversal of 420020411 is 114020024.

It is a cyclic number.

It is not a de Polignac number, because 420020411 - 2² = 420020407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420020413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50 + ... + 28983.

It is an arithmetic number, because the mean of its divisors is an integer number (29788884).

Almost surely, 2^420020411 is an apocalyptic number.

420020411 is a deficient number, since it is larger than the sum of its proper divisors (56601733).

420020411 is a wasteful number, since it uses less digits than its factorization.

420020411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29110.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 420020411 is about 20494.3995032789. The cubic root of 420020411 is about 748.8993699042.

Adding to 420020411 its reverse (114020024), we get a palindrome (534040435).

The spelling of 420020411 in words is "four hundred twenty million, twenty thousand, four hundred eleven".