421838589 has 16 divisors (see below), whose sum is σ = 595169280. Its totient is φ = 265022640.

The previous prime is 421838567. The next prime is 421838609. The reversal of 421838589 is 985838124.

It is not a de Polignac number, because 421838589 - 2¹³ = 421830397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421838189) 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, 8487 + ... + 30260.

It is an arithmetic number, because the mean of its divisors is an integer number (37198080).

Almost surely, 2^421838589 is an apocalyptic number.

It is an amenable number.

421838589 is a deficient number, since it is larger than the sum of its proper divisors (173330691).

421838589 is a wasteful number, since it uses less digits than its factorization.

421838589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38960.

The product of its digits is 552960, while the sum is 48.

The square root of 421838589 is about 20538.7095261606. The cubic root of 421838589 is about 749.9784224903.

The spelling of 421838589 in words is "four hundred twenty-one million, eight hundred thirty-eight thousand, five hundred eighty-nine".