3291444388 has 12 divisors (see below), whose sum is σ = 5789873740. Its totient is φ = 1637194752.

The previous prime is 3291444383. The next prime is 3291444389. The reversal of 3291444388 is 8834441923.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 484352064 + 2807092324 = 22008^2 + 52982^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3291444383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130993 + ... + 2132536.

Almost surely, 2^3291444388 is an apocalyptic number.

It is an amenable number.

3291444388 is a deficient number, since it is larger than the sum of its proper divisors (2498429352).

3291444388 is a wasteful number, since it uses less digits than its factorization.

3291444388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263726 (or 4263724 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 3291444388 is about 57371.1110926048. Note that the first 3 decimals coincide. The cubic root of 3291444388 is about 1487.5178088681.

The spelling of 3291444388 in words is "three billion, two hundred ninety-one million, four hundred forty-four thousand, three hundred eighty-eight".