469619221 has 6 divisors (see below), whose sum is σ = 490925750. Its totient is φ = 449200488.

The previous prime is 469619191. The next prime is 469619233. The reversal of 469619221 is 122916964.

It can be written as a sum of positive squares in only one way, i.e., 313644100 + 155975121 = 17710^2 + 12489^2 .

It is a de Polignac number, because none of the positive numbers 2^k-469619221 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 (469619251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443346 + ... + 444403.

Almost surely, 2^469619221 is an apocalyptic number.

It is an amenable number.

469619221 is a deficient number, since it is larger than the sum of its proper divisors (21306529).

469619221 is an equidigital number, since it uses as much as digits as its factorization.

469619221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887795 (or 887772 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 469619221 is about 21670.6995964597. The cubic root of 469619221 is about 777.2879849810.

The spelling of 469619221 in words is "four hundred sixty-nine million, six hundred nineteen thousand, two hundred twenty-one".