421433201 has 8 divisors (see below), whose sum is σ = 489534144. Its totient is φ = 355306320.

The previous prime is 421433183. The next prime is 421433231. The reversal of 421433201 is 102334124.

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

It is a cyclic number.

It is not a de Polignac number, because 421433201 - 2¹⁸ = 421171057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421433231) 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, 493055 + ... + 493908.

It is an arithmetic number, because the mean of its divisors is an integer number (61191768).

Almost surely, 2^421433201 is an apocalyptic number.

It is an amenable number.

421433201 is a deficient number, since it is larger than the sum of its proper divisors (68100943).

421433201 is an equidigital number, since it uses as much as digits as its factorization.

421433201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987031.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 421433201 is about 20528.8382769216. The cubic root of 421433201 is about 749.7381017416.

Adding to 421433201 its reverse (102334124), we get a palindrome (523767325).

The spelling of 421433201 in words is "four hundred twenty-one million, four hundred thirty-three thousand, two hundred one".