450423745 has 8 divisors (see below), whose sum is σ = 553691880. Its totient is φ = 351550080.

The previous prime is 450423731. The next prime is 450423751. The reversal of 450423745 is 547324054.

It can be written as a sum of positive squares in 4 ways, for example, as 29517489 + 420906256 = 5433^2 + 20516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-450423745 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450423745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098390 + ... + 1098799.

It is an arithmetic number, because the mean of its divisors is an integer number (69211485).

Almost surely, 2^450423745 is an apocalyptic number.

It is an amenable number.

450423745 is a deficient number, since it is larger than the sum of its proper divisors (103268135).

450423745 is a wasteful number, since it uses less digits than its factorization.

450423745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197235.

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 450423745 is about 21223.1888508772. The cubic root of 450423745 is about 766.5498901113.

Adding to 450423745 its reverse (547324054), we get a palindrome (997747799).

The spelling of 450423745 in words is "four hundred fifty million, four hundred twenty-three thousand, seven hundred forty-five".