450990869 has 8 divisors (see below), whose sum is σ = 523111488. Its totient is φ = 380793600.

The previous prime is 450990863. The next prime is 450990887. The reversal of 450990869 is 968099054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450990869 - 2⁴ = 450990853 is a prime.

It is a super-2 number, since 2×450990869² = 406785527842750322, 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 (450990863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480332 + ... + 481269.

It is an arithmetic number, because the mean of its divisors is an integer number (65388936).

Almost surely, 2^450990869 is an apocalyptic number.

It is an amenable number.

450990869 is a deficient number, since it is larger than the sum of its proper divisors (72120619).

450990869 is an equidigital number, since it uses as much as digits as its factorization.

450990869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961675.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 450990869 is about 21236.5455995084. The cubic root of 450990869 is about 766.8714735965.

The spelling of 450990869 in words is "four hundred fifty million, nine hundred ninety thousand, eight hundred sixty-nine".