20532244 has 12 divisors (see below), whose sum is σ = 36073044. Its totient is φ = 10225664.

The previous prime is 20532233. The next prime is 20532263. The reversal of 20532244 is 44223502.

It can be written as a sum of positive squares in 2 ways, for example, as 15523600 + 5008644 = 3940^2 + 2238^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8959 + ... + 11014.

It is an arithmetic number, because the mean of its divisors is an integer number (3006087).

Almost surely, 2^20532244 is an apocalyptic number.

It is an amenable number.

20532244 is a deficient number, since it is larger than the sum of its proper divisors (15540800).

20532244 is a wasteful number, since it uses less digits than its factorization.

20532244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20234 (or 20232 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20532244 is about 4531.2519241375. The cubic root of 20532244 is about 273.8285997135.

Adding to 20532244 its reverse (44223502), we get a palindrome (64755746).

The spelling of 20532244 in words is "twenty million, five hundred thirty-two thousand, two hundred forty-four".