495621128 has 36 divisors (see below), whose sum is σ = 989305965. Its totient is φ = 232729728.

The previous prime is 495621127. The next prime is 495621151. The reversal of 495621128 is 821126594.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 453604804 + 42016324 = 21298^2 + 6482^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=15742.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 495621091 and 495621100.

It is not an unprimeable number, because it can be changed into a prime (495621127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1070225 + ... + 1070687.

Almost surely, 2^495621128 is an apocalyptic number.

It is an amenable number.

495621128 is a deficient number, since it is larger than the sum of its proper divisors (493684837).

495621128 is an equidigital number, since it uses as much as digits as its factorization.

495621128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 482 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 495621128 is about 22262.5498988773. The cubic root of 495621128 is about 791.3767202854.

The spelling of 495621128 in words is "four hundred ninety-five million, six hundred twenty-one thousand, one hundred twenty-eight".