450000409518 has 64 divisors (see below), whose sum is σ = 1093883120640. Its totient is φ = 135992131200.

The previous prime is 450000409513. The next prime is 450000409549. The reversal of 450000409518 is 815904000054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450000409511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814123 + ... + 1250118.

It is an arithmetic number, because the mean of its divisors is an integer number (17091923760).

Almost surely, 2^450000409518 is an apocalyptic number.

450000409518 is an abundant number, since it is smaller than the sum of its proper divisors (643882711122).

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

450000409518 is a wasteful number, since it uses less digits than its factorization.

450000409518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064630 (or 2064624 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 450000409518 in words is "four hundred fifty billion, four hundred nine thousand, five hundred eighteen".