450728755 has 4 divisors (see below), whose sum is σ = 540874512. Its totient is φ = 360583000.

The previous prime is 450728753. The next prime is 450728771. The reversal of 450728755 is 557827054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 450728755 - 2¹ = 450728753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450728753) 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 3 ways as a sum of consecutive naturals, for example, 45072871 + ... + 45072880.

It is an arithmetic number, because the mean of its divisors is an integer number (135218628).

Almost surely, 2^450728755 is an apocalyptic number.

450728755 is a deficient number, since it is larger than the sum of its proper divisors (90145757).

450728755 is an equidigital number, since it uses as much as digits as its factorization.

450728755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90145756.

The product of its (nonzero) digits is 392000, while the sum is 43.

The square root of 450728755 is about 21230.3734069846. The cubic root of 450728755 is about 766.7228773111.

The spelling of 450728755 in words is "four hundred fifty million, seven hundred twenty-eight thousand, seven hundred fifty-five".