450213516 has 72 divisors (see below), whose sum is σ = 1246583520. Its totient is φ = 136367616.

The previous prime is 450213479. The next prime is 450213529. The reversal of 450213516 is 615312054.

It is a self number, because there is not a number n which added to its sum of digits gives 450213516.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5065 + ... + 30431.

It is an arithmetic number, because the mean of its divisors is an integer number (17313660).

Almost surely, 2^450213516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450213516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623291760).

450213516 is an abundant number, since it is smaller than the sum of its proper divisors (796370004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450213516 is a wasteful number, since it uses less digits than its factorization.

450213516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25423 (or 25418 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 450213516 is about 21218.2354591516. The cubic root of 450213516 is about 766.4306127295.

The spelling of 450213516 in words is "four hundred fifty million, two hundred thirteen thousand, five hundred sixteen".