20302752 has 48 divisors (see below), whose sum is σ = 54184032. Its totient is φ = 6654720.

The previous prime is 20302747. The next prime is 20302753. The reversal of 20302752 is 25720302.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20302753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4123 + ... + 7589.

It is an arithmetic number, because the mean of its divisors is an integer number (1128834).

Almost surely, 2^20302752 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 20302752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27092016).

20302752 is an abundant number, since it is smaller than the sum of its proper divisors (33881280).

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

20302752 is a wasteful number, since it uses less digits than its factorization.

20302752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541 (or 3533 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20302752 is about 4505.8575210497. The cubic root of 20302752 is about 272.8045670211.

The spelling of 20302752 in words is "twenty million, three hundred two thousand, seven hundred fifty-two".