20039896 has 8 divisors (see below), whose sum is σ = 37574820. Its totient is φ = 10019944.

The previous prime is 20039893. The next prime is 20039933. The reversal of 20039896 is 69893002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20039891) 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 as a sum of consecutive naturals, namely, 1252486 + ... + 1252501.

Almost surely, 2^20039896 is an apocalyptic number.

It is an amenable number.

20039896 is a deficient number, since it is larger than the sum of its proper divisors (17534924).

20039896 is a wasteful number, since it uses less digits than its factorization.

20039896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504993 (or 2504989 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 20039896 is about 4476.5942411615. The cubic root of 20039896 is about 271.6221324534.

The spelling of 20039896 in words is "twenty million, thirty-nine thousand, eight hundred ninety-six".