420459 has 8 divisors (see below), whose sum is σ = 603792. Its totient is φ = 258720.

The previous prime is 420457. The next prime is 420467. The reversal of 420459 is 954024.

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

It is not a de Polignac number, because 420459 - 2¹ = 420457 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (420457) 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 7 ways as a sum of consecutive naturals, for example, 5352 + ... + 5429.

It is an arithmetic number, because the mean of its divisors is an integer number (75474).

2⁴²⁰⁴⁵⁹ is an apocalyptic number.

420459 is a deficient number, since it is larger than the sum of its proper divisors (183333).

420459 is a wasteful number, since it uses less digits than its factorization.

420459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10797.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 420459 is about 648.4280993294. The cubic root of 420459 is about 74.9159948324.

The spelling of 420459 in words is "four hundred twenty thousand, four hundred fifty-nine".