469452221 has 4 divisors (see below), whose sum is σ = 536516832. Its totient is φ = 402387612.

The previous prime is 469452211. The next prime is 469452239. The reversal of 469452221 is 122254964.

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 a de Polignac number, because none of the positive numbers 2^k-469452221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469452211) 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, 33532295 + ... + 33532308.

It is an arithmetic number, because the mean of its divisors is an integer number (134129208).

Almost surely, 2^469452221 is an apocalyptic number.

It is an amenable number.

469452221 is a deficient number, since it is larger than the sum of its proper divisors (67064611).

469452221 is an equidigital number, since it uses as much as digits as its factorization.

469452221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67064610.

The product of its digits is 34560, while the sum is 35.

The square root of 469452221 is about 21666.8461248978. The cubic root of 469452221 is about 777.1958376430.

The spelling of 469452221 in words is "four hundred sixty-nine million, four hundred fifty-two thousand, two hundred twenty-one".