20849084 has 12 divisors (see below), whose sum is σ = 36821400. Its totient is φ = 10328688.

The previous prime is 20849077. The next prime is 20849107. The reversal of 20849084 is 48094802.

It is a congruent number.

It is an unprimeable number.

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, 23474 + ... + 24345.

It is an arithmetic number, because the mean of its divisors is an integer number (3068450).

Almost surely, 2^20849084 is an apocalyptic number.

It is an amenable number.

20849084 is a deficient number, since it is larger than the sum of its proper divisors (15972316).

20849084 is a wasteful number, since it uses less digits than its factorization.

20849084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47932 (or 47930 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 20849084 is about 4566.0797189712. The cubic root of 20849084 is about 275.2299300139.

The spelling of 20849084 in words is "twenty million, eight hundred forty-nine thousand, eighty-four".