20032245 has 16 divisors (see below), whose sum is σ = 35613120. Its totient is φ = 10683792.

The previous prime is 20032237. The next prime is 20032249. The reversal of 20032245 is 54223002.

It is not a de Polignac number, because 20032245 - 2³ = 20032237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032249) 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, 74059 + ... + 74328.

It is an arithmetic number, because the mean of its divisors is an integer number (2225820).

Almost surely, 2^20032245 is an apocalyptic number.

It is an amenable number.

20032245 is a deficient number, since it is larger than the sum of its proper divisors (15580875).

20032245 is a wasteful number, since it uses less digits than its factorization.

20032245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148401 (or 148395 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20032245 is about 4475.7396036856. The cubic root of 20032245 is about 271.5875606595.

Adding to 20032245 its reverse (54223002), we get a palindrome (74255247).

The spelling of 20032245 in words is "twenty million, thirty-two thousand, two hundred forty-five".