450668461 has 4 divisors (see below), whose sum is σ = 453158524. Its totient is φ = 448178400.

The previous prime is 450668447. The next prime is 450668501. The reversal of 450668461 is 164866054.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2499561 + 448168900 = 1581^2 + 21170^2 .

It is a cyclic number.

It is not a de Polignac number, because 450668461 - 2⁹ = 450667949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450608461) 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, 1244760 + ... + 1245121.

It is an arithmetic number, because the mean of its divisors is an integer number (113289631).

Almost surely, 2^450668461 is an apocalyptic number.

It is an amenable number.

450668461 is a deficient number, since it is larger than the sum of its proper divisors (2490063).

450668461 is a wasteful number, since it uses less digits than its factorization.

450668461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490062.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 450668461 is about 21228.9533656278. The cubic root of 450668461 is about 766.6886876053.

The spelling of 450668461 in words is "four hundred fifty million, six hundred sixty-eight thousand, four hundred sixty-one".