450640311 has 32 divisors (see below), whose sum is σ = 685767168. Its totient is φ = 260557440.

The previous prime is 450640303. The next prime is 450640313. The reversal of 450640311 is 113046054.

It is not a de Polignac number, because 450640311 - 2³ = 450640303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450640313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 513405 + ... + 514281.

It is an arithmetic number, because the mean of its divisors is an integer number (21430224).

Almost surely, 2^450640311 is an apocalyptic number.

450640311 is a deficient number, since it is larger than the sum of its proper divisors (235126857).

450640311 is a wasteful number, since it uses less digits than its factorization.

450640311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 450640311 is about 21228.2903456684. The cubic root of 450640311 is about 766.6727241067.

Adding to 450640311 its reverse (113046054), we get a palindrome (563686365).

The spelling of 450640311 in words is "four hundred fifty million, six hundred forty thousand, three hundred eleven".