450722949 has 4 divisors (see below), whose sum is σ = 600963936. Its totient is φ = 300481964.

The previous prime is 450722939. The next prime is 450722999. The reversal of 450722949 is 949227054.

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 450722949 - 2⁷ = 450722821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450722949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450722939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75120489 + ... + 75120494.

It is an arithmetic number, because the mean of its divisors is an integer number (150240984).

Almost surely, 2^450722949 is an apocalyptic number.

It is an amenable number.

450722949 is a deficient number, since it is larger than the sum of its proper divisors (150240987).

450722949 is a wasteful number, since it uses less digits than its factorization.

450722949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150240986.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 450722949 is about 21230.2366684877. The cubic root of 450722949 is about 766.7195851521.

The spelling of 450722949 in words is "four hundred fifty million, seven hundred twenty-two thousand, nine hundred forty-nine".