450145784 has 32 divisors (see below), whose sum is σ = 923454000. Its totient is φ = 204011520.

The previous prime is 450145781. The next prime is 450145819. The reversal of 450145784 is 487541054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450145781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23384 + ... + 38040.

Almost surely, 2^450145784 is an apocalyptic number.

450145784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

450145784 is an abundant number, since it is smaller than the sum of its proper divisors (473308216).

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

450145784 is a wasteful number, since it uses less digits than its factorization.

450145784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15023 (or 15019 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 450145784 is about 21216.6393191759. The cubic root of 450145784 is about 766.3921757954.

The spelling of 450145784 in words is "four hundred fifty million, one hundred forty-five thousand, seven hundred eighty-four".