450418140 has 72 divisors (see below), whose sum is σ = 1413397440. Its totient is φ = 115968384.

The previous prime is 450418121. The next prime is 450418141. The reversal of 450418140 is 41814054.

It is a happy number.

450418140 is a `hidden beast` number, since 4 + 504 + 18 + 140 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450418141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37924 + ... + 48363.

It is an arithmetic number, because the mean of its divisors is an integer number (19630520).

Almost surely, 2^450418140 is an apocalyptic number.

It is an amenable number.

450418140 is an abundant number, since it is smaller than the sum of its proper divisors (962979300).

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

450418140 is a wasteful number, since it uses less digits than its factorization.

450418140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86331 (or 86326 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 450418140 is about 21223.0568015072. The cubic root of 450418140 is about 766.5467104906.

The spelling of 450418140 in words is "four hundred fifty million, four hundred eighteen thousand, one hundred forty".