450772686 has 72 divisors (see below), whose sum is σ = 1208722320. Its totient is φ = 118879488.

The previous prime is 450772669. The next prime is 450772687. The reversal of 450772686 is 686277054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450772687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10710 + ... + 31878.

It is an arithmetic number, because the mean of its divisors is an integer number (16787810).

Almost surely, 2^450772686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450772686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604361160).

450772686 is an abundant number, since it is smaller than the sum of its proper divisors (757949634).

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

450772686 is a wasteful number, since it uses less digits than its factorization.

450772686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21210 (or 21194 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 450772686 is about 21231.4080079490. The cubic root of 450772686 is about 766.7477864596.

The spelling of 450772686 in words is "four hundred fifty million, seven hundred seventy-two thousand, six hundred eighty-six".