421514399 has 16 divisors (see below), whose sum is σ = 453055680. Its totient is φ = 391184640.

The previous prime is 421514389. The next prime is 421514441. The reversal of 421514399 is 993415124.

It is a cyclic number.

It is not a de Polignac number, because 421514399 - 2²⁰ = 420465823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421514369) 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, 184637 + ... + 186905.

It is an arithmetic number, because the mean of its divisors is an integer number (28315980).

Almost surely, 2^421514399 is an apocalyptic number.

421514399 is a deficient number, since it is larger than the sum of its proper divisors (31541281).

421514399 is a wasteful number, since it uses less digits than its factorization.

421514399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530.

The product of its digits is 38880, while the sum is 38.

The square root of 421514399 is about 20530.8158386363. The cubic root of 421514399 is about 749.7862496053.

The spelling of 421514399 in words is "four hundred twenty-one million, five hundred fourteen thousand, three hundred ninety-nine".