20844494 has 16 divisors (see below), whose sum is σ = 34179840. Its totient is φ = 9455160.

The previous prime is 20844491. The next prime is 20844497. The reversal of 20844494 is 49444802.

It is an interprime number because it is at equal distance from previous prime (20844491) and next prime (20844497).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20844491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18347 + ... + 19449.

It is an arithmetic number, because the mean of its divisors is an integer number (2136240).

Almost surely, 2^20844494 is an apocalyptic number.

20844494 is a deficient number, since it is larger than the sum of its proper divisors (13335346).

20844494 is a wasteful number, since it uses less digits than its factorization.

20844494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 20844494 is about 4565.5770719593. The cubic root of 20844494 is about 275.2097309155.

The spelling of 20844494 in words is "twenty million, eight hundred forty-four thousand, four hundred ninety-four".