4490190666049 has 9 divisors (see below), whose sum is σ = 4935524452131. Its totient is φ = 4081970324520.

The previous prime is 4490190666043. The next prime is 4490190666079. The reversal of 4490190666049 is 9406660910944.

The square root of 4490190666049 is 2119007.

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., 2551223535025 + 1938967131024 = 1597255^2 + 1392468^2 .

It is not a de Polignac number, because 4490190666049 - 2³ = 4490190666041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4490190665984 and 4490190666002.

It is not an unprimeable number, because it can be changed into a prime (4490190666041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23212759 + ... + 23405395.

Almost surely, 2^{4490190666049} is an apocalyptic number.

4490190666049 is the 2119007-th square number.

4490190666049 is the 1059504-th centered octagonal number.

It is an amenable number.

4490190666049 is a deficient number, since it is larger than the sum of its proper divisors (445333786082).

4490190666049 is an frugal number, since it uses more digits than its factorization.

4490190666049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385296 (or 192648 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 58.

The spelling of 4490190666049 in words is "four trillion, four hundred ninety billion, one hundred ninety million, six hundred sixty-six thousand, forty-nine".