450940001 has 4 divisors (see below), whose sum is σ = 470546112. Its totient is φ = 431333892.

The previous prime is 450939941. The next prime is 450940013. The reversal of 450940001 is 100049054.

It is a happy number.

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 450940001 - 2¹⁰ = 450938977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 19606087 = 450940001 / (4 + 5 + 0 + 9 + 4 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450940031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9803021 + ... + 9803066.

It is an arithmetic number, because the mean of its divisors is an integer number (117636528).

Almost surely, 2^450940001 is an apocalyptic number.

It is an amenable number.

450940001 is a deficient number, since it is larger than the sum of its proper divisors (19606111).

450940001 is a wasteful number, since it uses less digits than its factorization.

450940001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19606110.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 450940001 is about 21235.3479133260. The cubic root of 450940001 is about 766.8426402819.

Adding to 450940001 its reverse (100049054), we get a palindrome (550989055).

The spelling of 450940001 in words is "four hundred fifty million, nine hundred forty thousand, one".