450025400000 has 168 divisors, whose sum is σ = 1217681407152. Its totient is φ = 163644800000.

The previous prime is 450025399981. The next prime is 450025400053. The reversal of 450025400000 is 4520054.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2097722 + ... + 2302278.

It is an arithmetic number, because the mean of its divisors is an integer number (7248103614).

Almost surely, 2^450025400000 is an apocalyptic number.

450025400000 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 450025400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608840703576).

450025400000 is an abundant number, since it is smaller than the sum of its proper divisors (767656007152).

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

450025400000 is an equidigital number, since it uses as much as digits as its factorization.

450025400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204605 (or 204575 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

Adding to 450025400000 its reverse (4520054), we get a palindrome (450029920054).

The spelling of 450025400000 in words is "four hundred fifty billion, twenty-five million, four hundred thousand".