20849264 has 20 divisors (see below), whose sum is σ = 40466904. Its totient is φ = 10406208.

The previous prime is 20849263. The next prime is 20849273. The reversal of 20849264 is 46294802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20849263) 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 3 ways as a sum of consecutive naturals, for example, 15299 + ... + 16605.

Almost surely, 2^20849264 is an apocalyptic number.

It is an amenable number.

20849264 is a deficient number, since it is larger than the sum of its proper divisors (19617640).

20849264 is a wasteful number, since it uses less digits than its factorization.

20849264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 20849264 is about 4566.0994294912. The cubic root of 20849264 is about 275.2307220750.

The spelling of 20849264 in words is "twenty million, eight hundred forty-nine thousand, two hundred sixty-four".