450657427 has 4 divisors (see below), whose sum is σ = 491626296. Its totient is φ = 409688560.

The previous prime is 450657421. The next prime is 450657439. The reversal of 450657427 is 724756054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450657427 - 2¹¹ = 450655379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450657427.

It is not an unprimeable number, because it can be changed into a prime (450657421) 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 3 ways as a sum of consecutive naturals, for example, 20484418 + ... + 20484439.

It is an arithmetic number, because the mean of its divisors is an integer number (122906574).

Almost surely, 2^450657427 is an apocalyptic number.

450657427 is a deficient number, since it is larger than the sum of its proper divisors (40968869).

450657427 is a wasteful number, since it uses less digits than its factorization.

450657427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40968868.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 450657427 is about 21228.6934831138. The cubic root of 450657427 is about 766.6824304467.

The spelling of 450657427 in words is "four hundred fifty million, six hundred fifty-seven thousand, four hundred twenty-seven".