450422500 has 90 divisors (see below), whose sum is σ = 1083395390. Its totient is φ = 163680000.

The previous prime is 450422473. The next prime is 450422527. The reversal of 450422500 is 5224054.

It is an interprime number because it is at equal distance from previous prime (450422473) and next prime (450422527).

It can be written as a sum of positive squares in 5 ways, for example, as 244672164 + 205750336 = 15642^2 + 14344^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 301756 + ... + 303244.

Almost surely, 2^450422500 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 450422500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541697695).

450422500 is an abundant number, since it is smaller than the sum of its proper divisors (632972890).

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

450422500 is a wasteful number, since it uses less digits than its factorization.

450422500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 450422500 is about 21223.1595197322. The cubic root of 450422500 is about 766.5491838464.

Adding to 450422500 its reverse (5224054), we get a palindrome (455646554).

The spelling of 450422500 in words is "four hundred fifty million, four hundred twenty-two thousand, five hundred".