450551980 has 12 divisors (see below), whose sum is σ = 946159200. Its totient is φ = 180220784.

The previous prime is 450551963. The next prime is 450551987. The reversal of 450551980 is 89155054.

It is not an unprimeable number, because it can be changed into a prime (450551987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11263780 + ... + 11263819.

It is an arithmetic number, because the mean of its divisors is an integer number (78846600).

Almost surely, 2^450551980 is an apocalyptic number.

It is an amenable number.

450551980 is an abundant number, since it is smaller than the sum of its proper divisors (495607220).

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

450551980 is a wasteful number, since it uses less digits than its factorization.

450551980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22527608 (or 22527606 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 450551980 is about 21226.2097417320. The cubic root of 450551980 is about 766.6226284303.

The spelling of 450551980 in words is "four hundred fifty million, five hundred fifty-one thousand, nine hundred eighty".