4394649188 has 6 divisors (see below), whose sum is σ = 7690636086. Its totient is φ = 2197324592.

The previous prime is 4394649173. The next prime is 4394649221. The reversal of 4394649188 is 8819464934.

It can be written as a sum of positive squares in only one way, i.e., 3331367524 + 1063281664 = 57718^2 + 32608^2 .

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 as a sum of consecutive naturals, namely, 549331145 + ... + 549331152.

It is an arithmetic number, because the mean of its divisors is an integer number (1281772681).

Almost surely, 2^4394649188 is an apocalyptic number.

It is an amenable number.

4394649188 is a deficient number, since it is larger than the sum of its proper divisors (3295986898).

4394649188 is a wasteful number, since it uses less digits than its factorization.

4394649188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098662301 (or 1098662299 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 56.

The square root of 4394649188 is about 66292.1502743726. The cubic root of 4394649188 is about 1637.9780241679.

The spelling of 4394649188 in words is "four billion, three hundred ninety-four million, six hundred forty-nine thousand, one hundred eighty-eight".