450642401 has 4 divisors (see below), whose sum is σ = 491609904. Its totient is φ = 409674900.

The previous prime is 450642389. The next prime is 450642419. The reversal of 450642401 is 104246054.

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 450642401 - 2¹⁸ = 450380257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (450642431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20483735 + ... + 20483756.

It is an arithmetic number, because the mean of its divisors is an integer number (122902476).

Almost surely, 2^450642401 is an apocalyptic number.

It is an amenable number.

450642401 is a deficient number, since it is larger than the sum of its proper divisors (40967503).

450642401 is a wasteful number, since it uses less digits than its factorization.

450642401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40967502.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 450642401 is about 21228.3395723735. The cubic root of 450642401 is about 766.6739093414.

Adding to 450642401 its reverse (104246054), we get a palindrome (554888455).

The spelling of 450642401 in words is "four hundred fifty million, six hundred forty-two thousand, four hundred one".