450236420 has 24 divisors (see below), whose sum is σ = 946126104. Its totient is φ = 179974656.

The previous prime is 450236417. The next prime is 450236447. The reversal of 450236420 is 24632054.

It can be written as a sum of positive squares in 4 ways, for example, as 4519876 + 445716544 = 2126^2 + 21112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 450236420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27212 + ... + 40508.

It is an arithmetic number, because the mean of its divisors is an integer number (39421921).

Almost surely, 2^450236420 is an apocalyptic number.

It is an amenable number.

450236420 is an abundant number, since it is smaller than the sum of its proper divisors (495889684).

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

450236420 is a wasteful number, since it uses less digits than its factorization.

450236420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14999 (or 14997 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 450236420 is about 21218.7751767155. The cubic root of 450236420 is about 766.4436095473.

Adding to 450236420 its reverse (24632054), we get a palindrome (474868474).

The spelling of 450236420 in words is "four hundred fifty million, two hundred thirty-six thousand, four hundred twenty".