3213011440 has 20 divisors (see below), whose sum is σ = 7470251784. Its totient is φ = 1285204544.

The previous prime is 3213011419. The next prime is 3213011447. The reversal of 3213011440 is 441103123.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213011447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20081242 + ... + 20081401.

Almost surely, 2^3213011440 is an apocalyptic number.

It is an amenable number.

3213011440 is an abundant number, since it is smaller than the sum of its proper divisors (4257240344).

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

3213011440 is a wasteful number, since it uses less digits than its factorization.

3213011440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40162656 (or 40162650 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3213011440 is about 56683.4317944847. The cubic root of 3213011440 is about 1475.6071716506.

Adding to 3213011440 its reverse (441103123), we get a palindrome (3654114563).

The spelling of 3213011440 in words is "three billion, two hundred thirteen million, eleven thousand, four hundred forty".