450894013 has 4 divisors (see below), whose sum is σ = 450939868. Its totient is φ = 450848160.

The previous prime is 450894011. The next prime is 450894049. The reversal of 450894013 is 310498054.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 58339044 + 392554969 = 7638^2 + 19813^2 .

It is a cyclic number.

It is not a de Polignac number, because 450894013 - 2¹ = 450894011 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 450894013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450894011) 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, 1506 + ... + 30067.

It is an arithmetic number, because the mean of its divisors is an integer number (112734967).

Almost surely, 2^450894013 is an apocalyptic number.

It is an amenable number.

450894013 is a deficient number, since it is larger than the sum of its proper divisors (45855).

450894013 is a wasteful number, since it uses less digits than its factorization.

450894013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45854.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 450894013 is about 21234.2650685160. The cubic root of 450894013 is about 766.8165712127.

The spelling of 450894013 in words is "four hundred fifty million, eight hundred ninety-four thousand, thirteen".