449957221 has 8 divisors (see below), whose sum is σ = 541302080. Its totient is φ = 365378688.

The previous prime is 449957213. The next prime is 449957269. The reversal of 449957221 is 122759944.

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 449957221 - 2³ = 449957213 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 (449957201) 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, 1691436 + ... + 1691701.

It is an arithmetic number, because the mean of its divisors is an integer number (67662760).

Almost surely, 2^449957221 is an apocalyptic number.

It is an amenable number.

449957221 is a deficient number, since it is larger than the sum of its proper divisors (91344859).

449957221 is a wasteful number, since it uses less digits than its factorization.

449957221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383163.

The product of its digits is 181440, while the sum is 43.

The square root of 449957221 is about 21212.1951009319. The cubic root of 449957221 is about 766.2851486972.

The spelling of 449957221 in words is "four hundred forty-nine million, nine hundred fifty-seven thousand, two hundred twenty-one".