2036891409 has 16 divisors (see below), whose sum is σ = 3267194880. Its totient is φ = 1102677840.

The previous prime is 2036891401. The next prime is 2036891413. The reversal of 2036891409 is 9041986302.

It is not a de Polignac number, because 2036891409 - 2³ = 2036891401 is a prime.

It is a super-2 number, since 2×2036891409² = 8297853224116010562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2036891401) 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 15 ways as a sum of consecutive naturals, for example, 2552097 + ... + 2552894.

It is an arithmetic number, because the mean of its divisors is an integer number (204199680).

Almost surely, 2^2036891409 is an apocalyptic number.

It is an amenable number.

2036891409 is a deficient number, since it is larger than the sum of its proper divisors (1230303471).

2036891409 is a wasteful number, since it uses less digits than its factorization.

2036891409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105020.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2036891409 is about 45131.9333620885. The cubic root of 2036891409 is about 1267.6206113611.

The spelling of 2036891409 in words is "two billion, thirty-six million, eight hundred ninety-one thousand, four hundred nine".