3964213444 has 9 divisors (see below), whose sum is σ = 6937593901. Its totient is φ = 1982043760.

The previous prime is 3964213423. The next prime is 3964213471. The reversal of 3964213444 is 4443124693.

The square root of 3964213444 is 62962.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 238331844 + 3725881600 = 15438^2 + 61040^2 .

It is a super-2 number, since 2×3964213444² = 31429976459180682272, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3964213397 and 3964213406.

It is an unprimeable number.

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 in 2 ways as a sum of consecutive naturals, for example, 110184 + ... + 141664.

Almost surely, 2^3964213444 is an apocalyptic number.

3964213444 is the 62962-nd square number.

It is an amenable number.

3964213444 is a deficient number, since it is larger than the sum of its proper divisors (2973380457).

3964213444 is an frugal number, since it uses more digits than its factorization.

3964213444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62966 (or 31483 counting only the distinct ones).

The product of its digits is 248832, while the sum is 40.

The cubic root of 3964213444 is about 1582.6528956225.

The spelling of 3964213444 in words is "three billion, nine hundred sixty-four million, two hundred thirteen thousand, four hundred forty-four".