20245344 has 96 divisors (see below), whose sum is σ = 62125056. Its totient is φ = 5652480.

The previous prime is 20245343. The next prime is 20245369. The reversal of 20245344 is 44354202.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245343) 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, 31264 + ... + 31904.

It is an arithmetic number, because the mean of its divisors is an integer number (647136).

Almost surely, 2^20245344 is an apocalyptic number.

20245344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20245344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31062528).

20245344 is an abundant number, since it is smaller than the sum of its proper divisors (41879712).

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

20245344 is a wasteful number, since it uses less digits than its factorization.

20245344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 20245344 is about 4499.4826369262. The cubic root of 20245344 is about 272.5471971668.

Adding to 20245344 its reverse (44354202), we get a palindrome (64599546).

The spelling of 20245344 in words is "twenty million, two hundred forty-five thousand, three hundred forty-four".