450105709 has 4 divisors (see below), whose sum is σ = 464625280. Its totient is φ = 435586140.

The previous prime is 450105701. The next prime is 450105731. The reversal of 450105709 is 907501054.

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.

It is a cyclic number.

It is not a de Polignac number, because 450105709 - 2³ = 450105701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 14519539 = 450105709 / (4 + 5 + 0 + 1 + 0 + 5 + 7 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450105701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7259739 + ... + 7259800.

It is an arithmetic number, because the mean of its divisors is an integer number (116156320).

Almost surely, 2^450105709 is an apocalyptic number.

It is an amenable number.

450105709 is a deficient number, since it is larger than the sum of its proper divisors (14519571).

450105709 is a wasteful number, since it uses less digits than its factorization.

450105709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14519570.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 450105709 is about 21215.6948743142. The cubic root of 450105709 is about 766.3694319948.

The spelling of 450105709 in words is "four hundred fifty million, one hundred five thousand, seven hundred nine".