450228388 has 12 divisors (see below), whose sum is σ = 788349772. Its totient is φ = 224985600.

The previous prime is 450228377. The next prime is 450228397. The reversal of 450228388 is 883822054.

It can be written as a sum of positive squares in 2 ways, for example, as 107163904 + 343064484 = 10352^2 + 18522^2 .

It is a super-2 number, since 2×450228388² = 405411202722157088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 450228388.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24045 + ... + 38452.

Almost surely, 2^450228388 is an apocalyptic number.

It is an amenable number.

450228388 is a deficient number, since it is larger than the sum of its proper divisors (338121384).

450228388 is a wasteful number, since it uses less digits than its factorization.

450228388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64302 (or 64300 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 450228388 is about 21218.5859095275. The cubic root of 450228388 is about 766.4390518591.

The spelling of 450228388 in words is "four hundred fifty million, two hundred twenty-eight thousand, three hundred eighty-eight".