20944593 has 24 divisors (see below), whose sum is σ = 32460480. Its totient is φ = 12972960.

The previous prime is 20944579. The next prime is 20944601. The reversal of 20944593 is 39544902.

20944593 is a `hidden beast` number, since 20 + 9 + 44 + 593 = 666.

It is not a de Polignac number, because 20944593 - 2⁴ = 20944577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20944393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7908 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (1352520).

Almost surely, 2^20944593 is an apocalyptic number.

It is an amenable number.

20944593 is a deficient number, since it is larger than the sum of its proper divisors (11515887).

20944593 is a wasteful number, since it uses less digits than its factorization.

20944593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389 (or 2386 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 20944593 is about 4576.5263027759. The cubic root of 20944593 is about 275.6495631155.

The spelling of 20944593 in words is "twenty million, nine hundred forty-four thousand, five hundred ninety-three".