20245152 has 96 divisors (see below), whose sum is σ = 56827008. Its totient is φ = 6296576.

The previous prime is 20245151. The next prime is 20245157. The reversal of 20245152 is 25154202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (20245151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116938 + ... + 117110.

It is an arithmetic number, because the mean of its divisors is an integer number (591948).

Almost surely, 2^20245152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20245152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28413504).

20245152 is an abundant number, since it is smaller than the sum of its proper divisors (36581856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20245152 is a wasteful number, since it uses less digits than its factorization.

20245152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20245152 is about 4499.4613010893. The cubic root of 20245152 is about 272.5463355823.

Adding to 20245152 its reverse (25154202), we get a palindrome (45399354).

It can be divided in two parts, 202 and 45152, that added together give a palindrome (45354).

The spelling of 20245152 in words is "twenty million, two hundred forty-five thousand, one hundred fifty-two".