4036198649 has 30 divisors (see below), whose sum is σ = 4817255034. Its totient is φ = 3381540960.

The previous prime is 4036198643. The next prime is 4036198721. The reversal of 4036198649 is 9468916304.

It can be written as a sum of positive squares in only one way, i.e., 2121523600 + 1914675049 = 46060^2 + 43757^2 .

It is not a de Polignac number, because 4036198649 - 2⁸ = 4036198393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4036198597 and 4036198606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4036198643) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5303429 + ... + 5304189.

Almost surely, 2^4036198649 is an apocalyptic number.

4036198649 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4036198649 is a deficient number, since it is larger than the sum of its proper divisors (781056385).

4036198649 is an frugal number, since it uses more digits than its factorization.

4036198649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 4036198649 is about 63531.0841163599. The cubic root of 4036198649 is about 1592.1751605680.

The spelling of 4036198649 in words is "four billion, thirty-six million, one hundred ninety-eight thousand, six hundred forty-nine".