450136368 has 240 divisors, whose sum is σ = 1448478720. Its totient is φ = 129254400.

The previous prime is 450136363. The next prime is 450136411. The reversal of 450136368 is 863631054.

450136368 is a `hidden beast` number, since 4 + 5 + 0 + 13 + 636 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450136363) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4370205 + ... + 4370307.

It is an arithmetic number, because the mean of its divisors is an integer number (6035328).

Almost surely, 2^450136368 is an apocalyptic number.

450136368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450136368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724239360).

450136368 is an abundant number, since it is smaller than the sum of its proper divisors (998342352).

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

450136368 is a wasteful number, since it uses less digits than its factorization.

450136368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 450136368 is about 21216.4174167082. The cubic root of 450136368 is about 766.3868320458.

The spelling of 450136368 in words is "four hundred fifty million, one hundred thirty-six thousand, three hundred sixty-eight".