3520404032 has 14 divisors (see below), whose sum is σ = 6985801878. Its totient is φ = 1760201984.

The previous prime is 3520404031. The next prime is 3520404067. The reversal of 3520404032 is 2304040253.

It can be written as a sum of positive squares in only one way, i.e., 2710660096 + 809743936 = 52064^2 + 28456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3520403989 and 3520404007.

It is not an unprimeable number, because it can be changed into a prime (3520404031) by changing a digit.

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 as a sum of consecutive naturals, namely, 27503093 + ... + 27503220.

Almost surely, 2^3520404032 is an apocalyptic number.

3520404032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3520404032 is a deficient number, since it is larger than the sum of its proper divisors (3465397846).

3520404032 is an equidigital number, since it uses as much as digits as its factorization.

3520404032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55006325 (or 55006315 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 3520404032 is about 59332.9927780489. The cubic root of 3520404032 is about 1521.2391833843.

Adding to 3520404032 its reverse (2304040253), we get a palindrome (5824444285).

The spelling of 3520404032 in words is "three billion, five hundred twenty million, four hundred four thousand, thirty-two".