450845881 has 12 divisors (see below), whose sum is σ = 469124656. Its totient is φ = 433176480.

The previous prime is 450845873. The next prime is 450845887. The reversal of 450845881 is 188548054.

It is not a de Polignac number, because 450845881 - 2³ = 450845873 is a prime.

It is a super-2 number, since 2×450845881² = 406524016829332322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450845887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110626 + ... + 114628.

Almost surely, 2^450845881 is an apocalyptic number.

450845881 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

450845881 is a deficient number, since it is larger than the sum of its proper divisors (18278775).

450845881 is an equidigital number, since it uses as much as digits as its factorization.

450845881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152 (or 4111 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 43.

The square root of 450845881 is about 21233.1316814077. The cubic root of 450845881 is about 766.7892848826.

The spelling of 450845881 in words is "four hundred fifty million, eight hundred forty-five thousand, eight hundred eighty-one".