20648193 has 16 divisors (see below), whose sum is σ = 29184000. Its totient is φ = 12949200.

The previous prime is 20648167. The next prime is 20648209. The reversal of 20648193 is 39184602.

It is not a de Polignac number, because 20648193 - 2¹³ = 20640001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20648113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7408 + ... + 9806.

It is an arithmetic number, because the mean of its divisors is an integer number (1824000).

Almost surely, 2^20648193 is an apocalyptic number.

It is an amenable number.

20648193 is a deficient number, since it is larger than the sum of its proper divisors (8535807).

20648193 is a wasteful number, since it uses less digits than its factorization.

20648193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 20648193 is about 4544.0282789613. The cubic root of 20648193 is about 274.3430843615.

The spelling of 20648193 in words is "twenty million, six hundred forty-eight thousand, one hundred ninety-three".