450325840 has 120 divisors (see below), whose sum is σ = 1142926848. Its totient is φ = 164816640.

The previous prime is 450325751. The next prime is 450325861. The reversal of 450325840 is 48523054.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 895029 + ... + 895531.

Almost surely, 2^450325840 is an apocalyptic number.

450325840 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 450325840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571463424).

450325840 is an abundant number, since it is smaller than the sum of its proper divisors (692601008).

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

450325840 is a wasteful number, since it uses less digits than its factorization.

450325840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 450325840 is about 21220.8821682794. The cubic root of 450325840 is about 766.4943464845.

Adding to 450325840 its reverse (48523054), we get a palindrome (498848894).

The spelling of 450325840 in words is "four hundred fifty million, three hundred twenty-five thousand, eight hundred forty".