20848245 has 32 divisors (see below), whose sum is σ = 37653120. Its totient is φ = 9757440.

The previous prime is 20848241. The next prime is 20848253. The reversal of 20848245 is 54284802.

It is a happy number.

It is not a de Polignac number, because 20848245 - 2² = 20848241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20848241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2607 + ... + 6963.

It is an arithmetic number, because the mean of its divisors is an integer number (1176660).

Almost surely, 2^20848245 is an apocalyptic number.

It is an amenable number.

20848245 is a deficient number, since it is larger than the sum of its proper divisors (16804875).

20848245 is a wasteful number, since it uses less digits than its factorization.

20848245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 20848245 is about 4565.9878449247. The cubic root of 20848245 is about 275.2262380690.

The spelling of 20848245 in words is "twenty million, eight hundred forty-eight thousand, two hundred forty-five".