450829521 has 12 divisors (see below), whose sum is σ = 651722448. Its totient is φ = 300311064.

The previous prime is 450829513. The next prime is 450829567. The reversal of 450829521 is 125928054.

450829521 is a `hidden beast` number, since 4 + 50 + 82 + 9 + 521 = 666.

It is not a de Polignac number, because 450829521 - 2³ = 450829513 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (450829591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7975 + ... + 31068.

It is an arithmetic number, because the mean of its divisors is an integer number (54310204).

Almost surely, 2^450829521 is an apocalyptic number.

It is an amenable number.

450829521 is a deficient number, since it is larger than the sum of its proper divisors (200892927).

450829521 is a wasteful number, since it uses less digits than its factorization.

450829521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40332 (or 40329 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 450829521 is about 21232.7464309260. The cubic root of 450829521 is about 766.7800098547.

The spelling of 450829521 in words is "four hundred fifty million, eight hundred twenty-nine thousand, five hundred twenty-one".