421516383 has 8 divisors (see below), whose sum is σ = 562129200. Its totient is φ = 280957248.

The previous prime is 421516373. The next prime is 421516399. The reversal of 421516383 is 383615124.

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

It is not a de Polignac number, because 421516383 - 2¹⁶ = 421450847 is a prime.

It is a super-2 number, since 2×421516383² = 355352122274805378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421516373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11533 + ... + 31241.

It is an arithmetic number, because the mean of its divisors is an integer number (70266150).

Almost surely, 2^421516383 is an apocalyptic number.

421516383 is a deficient number, since it is larger than the sum of its proper divisors (140612817).

421516383 is a wasteful number, since it uses less digits than its factorization.

421516383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26841.

The product of its digits is 17280, while the sum is 33.

The square root of 421516383 is about 20530.8641561918. The cubic root of 421516383 is about 749.7874259776.

The spelling of 421516383 in words is "four hundred twenty-one million, five hundred sixteen thousand, three hundred eighty-three".