3213505404 has 18 divisors (see below), whose sum is σ = 8123027640. Its totient is φ = 1071168456.

The previous prime is 3213505367. The next prime is 3213505411. The reversal of 3213505404 is 4045053123.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44631984 + ... + 44632055.

Almost surely, 2^3213505404 is an apocalyptic number.

It is an amenable number.

3213505404 is an abundant number, since it is smaller than the sum of its proper divisors (4909522236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213505404 is a wasteful number, since it uses less digits than its factorization.

3213505404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89264049 (or 89264044 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 3213505404 is about 56687.7888438066. The cubic root of 3213505404 is about 1475.6827870543.

Adding to 3213505404 its reverse (4045053123), we get a palindrome (7258558527).

The spelling of 3213505404 in words is "three billion, two hundred thirteen million, five hundred five thousand, four hundred four".