450144136 has 16 divisors (see below), whose sum is σ = 908945100. Its totient is φ = 207758784.

The previous prime is 450144131. The next prime is 450144157. The reversal of 450144136 is 631441054.

It can be written as a sum of positive squares in 2 ways, for example, as 420004036 + 30140100 = 20494^2 + 5490^2 .

It is not an unprimeable number, because it can be changed into a prime (450144131) 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, 2164051 + ... + 2164258.

Almost surely, 2^450144136 is an apocalyptic number.

It is an amenable number.

450144136 is an abundant number, since it is smaller than the sum of its proper divisors (458800964).

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

450144136 is a wasteful number, since it uses less digits than its factorization.

450144136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328328 (or 4328324 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 450144136 is about 21216.6004816983. The cubic root of 450144136 is about 766.3912405311.

The spelling of 450144136 in words is "four hundred fifty million, one hundred forty-four thousand, one hundred thirty-six".