3213404440 has 32 divisors (see below), whose sum is σ = 7239779280. Its totient is φ = 1283651712.

The previous prime is 3213404401. The next prime is 3213404449. The reversal of 3213404440 is 444043123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213404449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22782 + ... + 83341.

Almost surely, 2^3213404440 is an apocalyptic number.

It is an amenable number.

3213404440 is an abundant number, since it is smaller than the sum of its proper divisors (4026374840).

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

3213404440 is a wasteful number, since it uses less digits than its factorization.

3213404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106891 (or 106887 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 3213404440 is about 56686.8983099270. The cubic root of 3213404440 is about 1475.6673322390.

Adding to 3213404440 its reverse (444043123), we get a palindrome (3657447563).

The spelling of 3213404440 in words is "three billion, two hundred thirteen million, four hundred four thousand, four hundred forty".