450136488 has 64 divisors (see below), whose sum is σ = 1153152000. Its totient is φ = 146377152.

The previous prime is 450136459. The next prime is 450136493. The reversal of 450136488 is 884631054.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195681 + ... + 197967.

It is an arithmetic number, because the mean of its divisors is an integer number (18018000).

Almost surely, 2^450136488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450136488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576576000).

450136488 is an abundant number, since it is smaller than the sum of its proper divisors (703015512).

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

450136488 is a wasteful number, since it uses less digits than its factorization.

450136488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 2490 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 450136488 is about 21216.4202447067. The cubic root of 450136488 is about 766.3869001484.

The spelling of 450136488 in words is "four hundred fifty million, one hundred thirty-six thousand, four hundred eighty-eight".