20243252 has 6 divisors (see below), whose sum is σ = 35425698. Its totient is φ = 10121624.

The previous prime is 20243233. The next prime is 20243263. The reversal of 20243252 is 25234202.

It can be written as a sum of positive squares in only one way, i.e., 20016676 + 226576 = 4474^2 + 476^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2530403 + ... + 2530410.

It is an arithmetic number, because the mean of its divisors is an integer number (5904283).

Almost surely, 2^20243252 is an apocalyptic number.

It is an amenable number.

20243252 is a deficient number, since it is larger than the sum of its proper divisors (15182446).

20243252 is a wasteful number, since it uses less digits than its factorization.

20243252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060817 (or 5060815 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20243252 is about 4499.2501597488. The cubic root of 20243252 is about 272.5378091914.

Adding to 20243252 its reverse (25234202), we get a palindrome (45477454).

The spelling of 20243252 in words is "twenty million, two hundred forty-three thousand, two hundred fifty-two".