403528985 has 16 divisors (see below), whose sum is σ = 501488064. Its totient is φ = 311502912.

The previous prime is 403528963. The next prime is 403528991. The reversal of 403528985 is 589825304.

It is a cyclic number.

It is not a de Polignac number, because 403528985 - 2²⁸ = 135093529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6539 + ... + 29151.

It is an arithmetic number, because the mean of its divisors is an integer number (31343004).

Almost surely, 2^403528985 is an apocalyptic number.

It is an amenable number.

403528985 is a deficient number, since it is larger than the sum of its proper divisors (97959079).

403528985 is a wasteful number, since it uses less digits than its factorization.

403528985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22744.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 403528985 is about 20088.0308890643. The cubic root of 403528985 is about 738.9667738789.

The spelling of 403528985 in words is "four hundred three million, five hundred twenty-eight thousand, nine hundred eighty-five".