450509019 has 32 divisors (see below), whose sum is σ = 657807360. Its totient is φ = 273196800.

The previous prime is 450508991. The next prime is 450509029. The reversal of 450509019 is 910905054.

It is not a de Polignac number, because 450509019 - 2⁸ = 450508763 is a prime.

It is a super-4 number, since 4×450509019⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (450509029) 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 31 ways as a sum of consecutive naturals, for example, 241149 + ... + 243009.

It is an arithmetic number, because the mean of its divisors is an integer number (20556480).

Almost surely, 2^450509019 is an apocalyptic number.

450509019 is a deficient number, since it is larger than the sum of its proper divisors (207298341).

450509019 is a wasteful number, since it uses less digits than its factorization.

450509019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 450509019 is about 21225.1977375948. The cubic root of 450509019 is about 766.5982613406.

The spelling of 450509019 in words is "four hundred fifty million, five hundred nine thousand, nineteen".