464221 has 4 divisors (see below), whose sum is σ = 468832. Its totient is φ = 459612.

The previous prime is 464213. The next prime is 464237. The reversal of 464221 is 122464.

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 464221 - 2³ = 464213 is a prime.

It is a super-2 number, since 2×464221² = 431002273682, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464201) 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 3 ways as a sum of consecutive naturals, for example, 2151 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (117208).

2⁴⁶⁴²²¹ is an apocalyptic number.

It is an amenable number.

464221 is a deficient number, since it is larger than the sum of its proper divisors (4611).

464221 is a wasteful number, since it uses less digits than its factorization.

464221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610.

The product of its digits is 384, while the sum is 19.

The square root of 464221 is about 681.3376549113. The cubic root of 464221 is about 77.4298220073.

Adding to 464221 its reverse (122464), we get a palindrome (586685).

The spelling of 464221 in words is "four hundred sixty-four thousand, two hundred twenty-one".