403248805 has 8 divisors (see below), whose sum is σ = 484072344. Its totient is φ = 322483200.

The previous prime is 403248803. The next prime is 403248809. The reversal of 403248805 is 508842304.

It can be written as a sum of positive squares in 4 ways, for example, as 12830724 + 390418081 = 3582^2 + 19759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 403248805 - 2¹ = 403248803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403248803) 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 7 ways as a sum of consecutive naturals, for example, 2685 + ... + 28525.

It is an arithmetic number, because the mean of its divisors is an integer number (60509043).

Almost surely, 2^403248805 is an apocalyptic number.

It is an amenable number.

403248805 is a deficient number, since it is larger than the sum of its proper divisors (80823539).

403248805 is a wasteful number, since it uses less digits than its factorization.

403248805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28967.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 403248805 is about 20081.0558736337. The cubic root of 403248805 is about 738.7957067392.

The spelling of 403248805 in words is "four hundred three million, two hundred forty-eight thousand, eight hundred five".