20532944 has 20 divisors (see below), whose sum is σ = 40458720. Its totient is φ = 10092000.

The previous prime is 20532917. The next prime is 20532949. The reversal of 20532944 is 44923502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20532949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9932 + ... + 11819.

It is an arithmetic number, because the mean of its divisors is an integer number (2022936).

Almost surely, 2^20532944 is an apocalyptic number.

It is an amenable number.

20532944 is a deficient number, since it is larger than the sum of its proper divisors (19925776).

20532944 is a wasteful number, since it uses less digits than its factorization.

20532944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21818 (or 21812 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20532944 is about 4531.3291648257. The cubic root of 20532944 is about 273.8317115319.

The spelling of 20532944 in words is "twenty million, five hundred thirty-two thousand, nine hundred forty-four".