464235221 has 4 divisors (see below), whose sum is σ = 464907744. Its totient is φ = 463562700.

The previous prime is 464235217. The next prime is 464235223. The reversal of 464235221 is 122532464.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 464235221 - 2² = 464235217 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 (464235223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335225 + ... + 336606.

It is an arithmetic number, because the mean of its divisors is an integer number (116226936).

Almost surely, 2^464235221 is an apocalyptic number.

It is an amenable number.

464235221 is a deficient number, since it is larger than the sum of its proper divisors (672523).

464235221 is an equidigital number, since it uses as much as digits as its factorization.

464235221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672522.

The product of its digits is 11520, while the sum is 29.

The square root of 464235221 is about 21546.1184671393. The cubic root of 464235221 is about 774.3061266398.

Adding to 464235221 its reverse (122532464), we get a palindrome (586767685).

The spelling of 464235221 in words is "four hundred sixty-four million, two hundred thirty-five thousand, two hundred twenty-one".