450345869 has 4 divisors (see below), whose sum is σ = 459927744. Its totient is φ = 440763996.

The previous prime is 450345853. The next prime is 450345893. The reversal of 450345869 is 968543054.

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: 968543054 = 2 ⋅484271527.

It is a cyclic number.

It is not a de Polignac number, because 450345869 - 2⁴ = 450345853 is a prime.

It is a super-2 number, since 2×450345869² = 405622803450730322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450345839) 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 3 ways as a sum of consecutive naturals, for example, 4790867 + ... + 4790960.

It is an arithmetic number, because the mean of its divisors is an integer number (114981936).

Almost surely, 2^450345869 is an apocalyptic number.

It is an amenable number.

450345869 is a deficient number, since it is larger than the sum of its proper divisors (9581875).

450345869 is an equidigital number, since it uses as much as digits as its factorization.

450345869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9581874.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 450345869 is about 21221.3540802655. The cubic root of 450345869 is about 766.5057100249.

The spelling of 450345869 in words is "four hundred fifty million, three hundred forty-five thousand, eight hundred sixty-nine".