450722457 has 12 divisors (see below), whose sum is σ = 653640624. Its totient is φ = 299283000.

The previous prime is 450722353. The next prime is 450722477. The reversal of 450722457 is 754227054.

It is a happy number.

It is not a de Polignac number, because 450722457 - 2¹⁰ = 450721433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (450722477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97503 + ... + 102020.

It is an arithmetic number, because the mean of its divisors is an integer number (54470052).

Almost surely, 2^450722457 is an apocalyptic number.

It is an amenable number.

450722457 is a deficient number, since it is larger than the sum of its proper divisors (202918167).

450722457 is a wasteful number, since it uses less digits than its factorization.

450722457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199780 (or 199777 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 450722457 is about 21230.2250812374. The cubic root of 450722457 is about 766.7193061735.

The spelling of 450722457 in words is "four hundred fifty million, seven hundred twenty-two thousand, four hundred fifty-seven".