450487869 has 32 divisors (see below), whose sum is σ = 669078144. Its totient is φ = 267832320.

The previous prime is 450487841. The next prime is 450487871. The reversal of 450487869 is 968784054.

It is not a de Polignac number, because 450487869 - 2⁵ = 450487837 is a prime.

It is a super-2 number, since 2×450487869² = 405878640232322322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450487889) 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, 169777 + ... + 172409.

It is an arithmetic number, because the mean of its divisors is an integer number (20908692).

Almost surely, 2^450487869 is an apocalyptic number.

It is an amenable number.

450487869 is a deficient number, since it is larger than the sum of its proper divisors (218590275).

450487869 is a wasteful number, since it uses less digits than its factorization.

450487869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 450487869 is about 21224.6995031732. The cubic root of 450487869 is about 766.5862646833.

The spelling of 450487869 in words is "four hundred fifty million, four hundred eighty-seven thousand, eight hundred sixty-nine".