450001144 has 8 divisors (see below), whose sum is σ = 843752160. Its totient is φ = 225000568.

The previous prime is 450001133. The next prime is 450001151. The reversal of 450001144 is 441100054.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28125064 + ... + 28125079.

It is an arithmetic number, because the mean of its divisors is an integer number (105469020).

Almost surely, 2^450001144 is an apocalyptic number.

It is an amenable number.

450001144 is a deficient number, since it is larger than the sum of its proper divisors (393751016).

450001144 is a wasteful number, since it uses less digits than its factorization.

450001144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56250149 (or 56250145 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 450001144 is about 21213.2303999179. The cubic root of 450001144 is about 766.3100817693.

Adding to 450001144 its reverse (441100054), we get a palindrome (891101198).

The spelling of 450001144 in words is "four hundred fifty million, one thousand, one hundred forty-four".