450758789 has 4 divisors (see below), whose sum is σ = 485432556. Its totient is φ = 416085024.

The previous prime is 450758783. The next prime is 450758813. The reversal of 450758789 is 987857054.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30713764 + 420045025 = 5542^2 + 20495^2 .

It is a cyclic number.

It is not a de Polignac number, because 450758789 - 2⁴ = 450758773 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 450758789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450758783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17336864 + ... + 17336889.

It is an arithmetic number, because the mean of its divisors is an integer number (121358139).

Almost surely, 2^450758789 is an apocalyptic number.

It is an amenable number.

450758789 is a deficient number, since it is larger than the sum of its proper divisors (34673767).

450758789 is a wasteful number, since it uses less digits than its factorization.

450758789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34673766.

The product of its (nonzero) digits is 2822400, while the sum is 53.

The square root of 450758789 is about 21231.0807308531. The cubic root of 450758789 is about 766.7399069497.

The spelling of 450758789 in words is "four hundred fifty million, seven hundred fifty-eight thousand, seven hundred eighty-nine".