421324455 has 16 divisors (see below), whose sum is σ = 680087520. Its totient is φ = 222716928.

The previous prime is 421324433. The next prime is 421324471. The reversal of 421324455 is 554423124.

It is not a de Polignac number, because 421324455 - 2⁹ = 421323943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122590 + ... + 125979.

It is an arithmetic number, because the mean of its divisors is an integer number (42505470).

Almost surely, 2^421324455 is an apocalyptic number.

421324455 is a deficient number, since it is larger than the sum of its proper divisors (258763065).

421324455 is a wasteful number, since it uses less digits than its factorization.

421324455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248690.

The product of its digits is 19200, while the sum is 30.

The square root of 421324455 is about 20526.1894905021. The cubic root of 421324455 is about 749.6736090903.

Adding to 421324455 its reverse (554423124), we get a palindrome (975747579).

The spelling of 421324455 in words is "four hundred twenty-one million, three hundred twenty-four thousand, four hundred fifty-five".