3278936644 has 9 divisors (see below), whose sum is σ = 5738339551. Its totient is φ = 1639411060.

The previous prime is 3278936641. The next prime is 3278936657. The reversal of 3278936644 is 4466398723.

It is a happy number.

The square root of 3278936644 is 57262.

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

It is a super-3 number, since 3×3278936644³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3278936591 and 3278936600.

It is not an unprimeable number, because it can be changed into a prime (3278936641) 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 in 2 ways as a sum of consecutive naturals, for example, 100209 + ... + 128839.

Almost surely, 2^3278936644 is an apocalyptic number.

3278936644 is the 57262-nd square number.

It is an amenable number.

3278936644 is a deficient number, since it is larger than the sum of its proper divisors (2459402907).

3278936644 is an frugal number, since it uses more digits than its factorization.

3278936644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57266 (or 28633 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 52.

The cubic root of 3278936644 is about 1485.6311893913.

The spelling of 3278936644 in words is "three billion, two hundred seventy-eight million, nine hundred thirty-six thousand, six hundred forty-four".