20049796 has 12 divisors (see below), whose sum is σ = 37786252. Its totient is φ = 9253728.

The previous prime is 20049781. The next prime is 20049797. The reversal of 20049796 is 69794002.

It can be written as a sum of positive squares in 2 ways, for example, as 4161600 + 15888196 = 2040^2 + 3986^2 .

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 not an unprimeable number, because it can be changed into a prime (20049797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192735 + ... + 192838.

Almost surely, 2^20049796 is an apocalyptic number.

20049796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20049796 is a deficient number, since it is larger than the sum of its proper divisors (17736456).

20049796 is a wasteful number, since it uses less digits than its factorization.

20049796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385590 (or 385588 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 20049796 is about 4477.6998559528. The cubic root of 20049796 is about 271.6668535175. Note that the first 3 decimals are identical.

The spelling of 20049796 in words is "twenty million, forty-nine thousand, seven hundred ninety-six".