450430400550 has 48 divisors (see below), whose sum is σ = 1202995659600. Its totient is φ = 110875175040.

The previous prime is 450430400549. The next prime is 450430400597. The reversal of 450430400550 is 55004034054.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115493025 + ... + 115496924.

It is an arithmetic number, because the mean of its divisors is an integer number (25062409575).

Almost surely, 2^450430400550 is an apocalyptic number.

450430400550 is an abundant number, since it is smaller than the sum of its proper divisors (752565259050).

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

450430400550 is a wasteful number, since it uses less digits than its factorization.

450430400550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230989977 (or 230989972 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 450430400550 in words is "four hundred fifty billion, four hundred thirty million, four hundred thousand, five hundred fifty".