450240448 has 56 divisors (see below), whose sum is σ = 1042854912. Its totient is φ = 188845824.

The previous prime is 450240431. The next prime is 450240449. The reversal of 450240448 is 844042054.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×450240448² = 405432922030481408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450240449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10365 + ... + 31747.

Almost surely, 2^450240448 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 450240448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521427456).

450240448 is an abundant number, since it is smaller than the sum of its proper divisors (592614464).

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

450240448 is a wasteful number, since it uses less digits than its factorization.

450240448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21449 (or 21439 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

The square root of 450240448 is about 21218.8700924437. The cubic root of 450240448 is about 766.4458951803.

The spelling of 450240448 in words is "four hundred fifty million, two hundred forty thousand, four hundred forty-eight".