450424422 has 64 divisors (see below), whose sum is σ = 1165570560. Its totient is φ = 126258912.

The previous prime is 450424411. The next prime is 450424439. The reversal of 450424422 is 224424054.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8793 + ... + 31275.

It is an arithmetic number, because the mean of its divisors is an integer number (18212040).

Almost surely, 2^450424422 is an apocalyptic number.

450424422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 450424422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582785280).

450424422 is an abundant number, since it is smaller than the sum of its proper divisors (715146138).

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

450424422 is a wasteful number, since it uses less digits than its factorization.

450424422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22554 (or 22548 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 450424422 is about 21223.2048004066. The cubic root of 450424422 is about 766.5502741601.

Adding to 450424422 its reverse (224424054), we get a palindrome (674848476).

The spelling of 450424422 in words is "four hundred fifty million, four hundred twenty-four thousand, four hundred twenty-two".