20065736 has 16 divisors (see below), whose sum is σ = 38154240. Its totient is φ = 9891280.

The previous prime is 20065733. The next prime is 20065777. The reversal of 20065736 is 63756002.

It is a super-2 number, since 2×20065736² = 805267522443392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20065699 and 20065708.

It is not an unprimeable number, because it can be changed into a prime (20065733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17096 + ... + 18231.

It is an arithmetic number, because the mean of its divisors is an integer number (2384640).

Almost surely, 2^20065736 is an apocalyptic number.

It is an amenable number.

20065736 is a deficient number, since it is larger than the sum of its proper divisors (18088504).

20065736 is a wasteful number, since it uses less digits than its factorization.

20065736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35404 (or 35400 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 20065736 is about 4479.4794340414. The cubic root of 20065736 is about 271.7388280250.

The spelling of 20065736 in words is "twenty million, sixty-five thousand, seven hundred thirty-six".