20849060 has 24 divisors (see below), whose sum is σ = 44439360. Its totient is φ = 8214624.

The previous prime is 20849053. The next prime is 20849069. The reversal of 20849060 is 6094802.

It is not an unprimeable number, because it can be changed into a prime (20849069) 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 7 ways as a sum of consecutive naturals, for example, 6440 + ... + 9119.

It is an arithmetic number, because the mean of its divisors is an integer number (1851640).

Almost surely, 2^20849060 is an apocalyptic number.

20849060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20849060 is an abundant number, since it is smaller than the sum of its proper divisors (23590300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20849060 is a wasteful number, since it uses less digits than its factorization.

20849060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15635 (or 15633 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20849060 is about 4566.0770908954. The cubic root of 20849060 is about 275.2298244054.

The spelling of 20849060 in words is "twenty million, eight hundred forty-nine thousand, sixty".