450685480 has 64 divisors (see below), whose sum is σ = 1163600640. Its totient is φ = 153894912.

The previous prime is 450685439. The next prime is 450685481. The reversal of 450685480 is 84586054.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (450685481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68829 + ... + 75091.

It is an arithmetic number, because the mean of its divisors is an integer number (18181260).

Almost surely, 2^450685480 is an apocalyptic number.

450685480 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 450685480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581800320).

450685480 is an abundant number, since it is smaller than the sum of its proper divisors (712915160).

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

450685480 is a wasteful number, since it uses less digits than its factorization.

450685480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 450685480 is about 21229.3542059103. The cubic root of 450685480 is about 766.6983385362.

The spelling of 450685480 in words is "four hundred fifty million, six hundred eighty-five thousand, four hundred eighty".