20245248 has 144 divisors (see below), whose sum is σ = 62546400. Its totient is φ = 6451200.

The previous prime is 20245237. The next prime is 20245259. The reversal of 20245248 is 84254202.

It is a happy number.

20245248 is a `hidden beast` number, since 202 + 452 + 4 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (20245237) and next prime (20245259).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200398 + ... + 200498.

It is an arithmetic number, because the mean of its divisors is an integer number (434350).

Almost surely, 2^20245248 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 20245248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31273200).

20245248 is an abundant number, since it is smaller than the sum of its proper divisors (42301152).

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

20245248 is a wasteful number, since it uses less digits than its factorization.

20245248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 20245248 is about 4499.4719690204. The cubic root of 20245248 is about 272.5467663752.

It can be divided in two parts, 202452 and 48, that added together give a square (202500 = 450²).

The spelling of 20245248 in words is "twenty million, two hundred forty-five thousand, two hundred forty-eight".