450554440 has 64 divisors (see below), whose sum is σ = 1198540800. Its totient is φ = 149146368.

The previous prime is 450554407. The next prime is 450554441. The reversal of 450554440 is 44455054.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (450554441) 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, 19624 + ... + 35863.

It is an arithmetic number, because the mean of its divisors is an integer number (18727200).

Almost surely, 2^450554440 is an apocalyptic number.

450554440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450554440 is an abundant number, since it is smaller than the sum of its proper divisors (747986360).

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

450554440 is a wasteful number, since it uses less digits than its factorization.

450554440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55534 (or 55530 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 450554440 is about 21226.2676888802. The cubic root of 450554440 is about 766.6240236731.

The spelling of 450554440 in words is "four hundred fifty million, five hundred fifty-four thousand, four hundred forty".