450512132 has 48 divisors (see below), whose sum is σ = 944455680. Its totient is φ = 183846432.

The previous prime is 450512123. The next prime is 450512143. The reversal of 450512132 is 231215054.

It is a super-2 number, since 2×450512132² = 405922362158370848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 450512098 and 450512107.

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, 152453 + ... + 155379.

It is an arithmetic number, because the mean of its divisors is an integer number (19676160).

Almost surely, 2^450512132 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 450512132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472227840).

450512132 is an abundant number, since it is smaller than the sum of its proper divisors (493943548).

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

450512132 is a wasteful number, since it uses less digits than its factorization.

450512132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200 (or 3198 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 450512132 is about 21225.2710701183. The cubic root of 450512132 is about 766.6000270580.

Adding to 450512132 its reverse (231215054), we get a palindrome (681727186).

The spelling of 450512132 in words is "four hundred fifty million, five hundred twelve thousand, one hundred thirty-two".