450132512240 has 80 divisors (see below), whose sum is σ = 1062995276448. Its totient is φ = 177240787968.

The previous prime is 450132512227. The next prime is 450132512261. The reversal of 450132512240 is 42215231054.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1716914 + ... + 1961646.

Almost surely, 2^450132512240 is an apocalyptic number.

450132512240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450132512240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531497638224).

450132512240 is an abundant number, since it is smaller than the sum of its proper divisors (612862764208).

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

450132512240 is a wasteful number, since it uses less digits than its factorization.

450132512240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245106 (or 245100 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 450132512240 its reverse (42215231054), we get a palindrome (492347743294).

The spelling of 450132512240 in words is "four hundred fifty billion, one hundred thirty-two million, five hundred twelve thousand, two hundred forty".