420801 has 16 divisors (see below), whose sum is σ = 612864. Its totient is φ = 255744.

The previous prime is 420799. The next prime is 420803. The reversal of 420801 is 108024.

It is an interprime number because it is at equal distance from previous prime (420799) and next prime (420803).

It is not a de Polignac number, because 420801 - 2¹ = 420799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420803) 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, 1776 + ... + 1998.

It is an arithmetic number, because the mean of its divisors is an integer number (38304).

2⁴²⁰⁸⁰¹ is an apocalyptic number.

It is an amenable number.

420801 is a deficient number, since it is larger than the sum of its proper divisors (192063).

420801 is a wasteful number, since it uses less digits than its factorization.

420801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 420801 is about 648.6917603916. The cubic root of 420801 is about 74.9363014708.

Adding to 420801 its reverse (108024), we get a palindrome (528825).

It can be divided in two parts, 420 and 801, that added together give a palindrome (1221).

The spelling of 420801 in words is "four hundred twenty thousand, eight hundred one".