420534401 has 8 divisors (see below), whose sum is σ = 480734784. Its totient is φ = 360365040.

The previous prime is 420534397. The next prime is 420534463. The reversal of 420534401 is 104435024.

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

It is not a de Polignac number, because 420534401 - 2² = 420534397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420537401) 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, 49406 + ... + 57288.

It is an arithmetic number, because the mean of its divisors is an integer number (60091848).

Almost surely, 2^420534401 is an apocalyptic number.

It is an amenable number.

420534401 is a deficient number, since it is larger than the sum of its proper divisors (60200383).

420534401 is an equidigital number, since it uses as much as digits as its factorization.

420534401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15511.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 420534401 is about 20506.9354365785. The cubic root of 420534401 is about 749.2047279843.

Adding to 420534401 its reverse (104435024), we get a palindrome (524969425).

The spelling of 420534401 in words is "four hundred twenty million, five hundred thirty-four thousand, four hundred one".