450505240 has 16 divisors (see below), whose sum is σ = 1013636880. Its totient is φ = 180202080.

The previous prime is 450505217. The next prime is 450505249. The reversal of 450505240 is 42505054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450505249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5631276 + ... + 5631355.

It is an arithmetic number, because the mean of its divisors is an integer number (63352305).

Almost surely, 2^450505240 is an apocalyptic number.

450505240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450505240 is an abundant number, since it is smaller than the sum of its proper divisors (563131640).

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

450505240 is a wasteful number, since it uses less digits than its factorization.

450505240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11262642 (or 11262638 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 450505240 is about 21225.1087158582. The cubic root of 450505240 is about 766.5961178519.

The spelling of 450505240 in words is "four hundred fifty million, five hundred five thousand, two hundred forty".