20848136 has 8 divisors (see below), whose sum is σ = 39090270. Its totient is φ = 10424064.

The previous prime is 20848109. The next prime is 20848147. The reversal of 20848136 is 63184802.

It can be written as a sum of positive squares in only one way, i.e., 19624900 + 1223236 = 4430^2 + 1106^2 .

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

It is an unprimeable number.

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, 1303001 + ... + 1303016.

Almost surely, 2^20848136 is an apocalyptic number.

It is an amenable number.

20848136 is a deficient number, since it is larger than the sum of its proper divisors (18242134).

20848136 is a wasteful number, since it uses less digits than its factorization.

20848136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606023 (or 2606019 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20848136 is about 4565.9759088283. The cubic root of 20848136 is about 275.2257584169.

The spelling of 20848136 in words is "twenty million, eight hundred forty-eight thousand, one hundred thirty-six".