450533220 has 24 divisors (see below), whose sum is σ = 1261493184. Its totient is φ = 120142176.

The previous prime is 450533207. The next prime is 450533233. The reversal of 450533220 is 22335054.

It is an interprime number because it is at equal distance from previous prime (450533207) and next prime (450533233).

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, 3754384 + ... + 3754503.

It is an arithmetic number, because the mean of its divisors is an integer number (52562216).

Almost surely, 2^450533220 is an apocalyptic number.

It is an amenable number.

450533220 is an abundant number, since it is smaller than the sum of its proper divisors (810959964).

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

450533220 is a wasteful number, since it uses less digits than its factorization.

450533220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508899 (or 7508897 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 450533220 is about 21225.7678306345. The cubic root of 450533220 is about 766.6119881189.

Adding to 450533220 its reverse (22335054), we get a palindrome (472868274).

The spelling of 450533220 in words is "four hundred fifty million, five hundred thirty-three thousand, two hundred twenty".