420454230 has 128 divisors (see below), whose sum is σ = 1223147520. Its totient is φ = 90357120.

The previous prime is 420454219. The next prime is 420454259. The reversal of 420454230 is 32454024.

It is a self number, because there is not a number n which added to its sum of digits gives 420454230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 666015 + ... + 666645.

It is an arithmetic number, because the mean of its divisors is an integer number (9555840).

Almost surely, 2^420454230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420454230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611573760).

420454230 is an abundant number, since it is smaller than the sum of its proper divisors (802693290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420454230 is a wasteful number, since it uses less digits than its factorization.

420454230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 420454230 is about 20504.9806144751. The cubic root of 420454230 is about 749.1571153043.

The spelling of 420454230 in words is "four hundred twenty million, four hundred fifty-four thousand, two hundred thirty".