450461861 has 4 divisors (see below), whose sum is σ = 474170400. Its totient is φ = 426753324.

The previous prime is 450461821. The next prime is 450461863. The reversal of 450461861 is 168164054.

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, and also an emirpimes, since its reverse is a distinct semiprime: 168164054 = 2 ⋅84082027.

It is a cyclic number.

It is not a de Polignac number, because 450461861 - 2⁶ = 450461797 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 (450461863) 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, 11854241 + ... + 11854278.

It is an arithmetic number, because the mean of its divisors is an integer number (118542600).

Almost surely, 2^450461861 is an apocalyptic number.

It is an amenable number.

450461861 is a deficient number, since it is larger than the sum of its proper divisors (23708539).

450461861 is a wasteful number, since it uses less digits than its factorization.

450461861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23708538.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 450461861 is about 21224.0868119220. The cubic root of 450461861 is about 766.5715119669.

The spelling of 450461861 in words is "four hundred fifty million, four hundred sixty-one thousand, eight hundred sixty-one".