421600353 has 8 divisors (see below), whose sum is σ = 562234848. Its totient is φ = 281016384.

The previous prime is 421600349. The next prime is 421600363. The reversal of 421600353 is 353006124.

It is a happy number.

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

It is not a de Polignac number, because 421600353 - 2² = 421600349 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421600363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16326 + ... + 33312.

It is an arithmetic number, because the mean of its divisors is an integer number (70279356).

Almost surely, 2^421600353 is an apocalyptic number.

It is an amenable number.

421600353 is a deficient number, since it is larger than the sum of its proper divisors (140634495).

421600353 is a wasteful number, since it uses less digits than its factorization.

421600353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25263.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 421600353 is about 20532.9090242956. The cubic root of 421600353 is about 749.8372108911.

Adding to 421600353 its reverse (353006124), we get a palindrome (774606477).

The spelling of 421600353 in words is "four hundred twenty-one million, six hundred thousand, three hundred fifty-three".