20844932 has 6 divisors (see below), whose sum is σ = 36478638. Its totient is φ = 10422464.

The previous prime is 20844883. The next prime is 20844937. The reversal of 20844932 is 23944802.

It can be written as a sum of positive squares in only one way, i.e., 15007876 + 5837056 = 3874^2 + 2416^2 .

It is a super-2 number, since 2×20844932² = 869022380169248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20844937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605613 + ... + 2605620.

It is an arithmetic number, because the mean of its divisors is an integer number (6079773).

Almost surely, 2^20844932 is an apocalyptic number.

It is an amenable number.

20844932 is a deficient number, since it is larger than the sum of its proper divisors (15633706).

20844932 is a wasteful number, since it uses less digits than its factorization.

20844932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211237 (or 5211235 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20844932 is about 4565.6250393566. The cubic root of 20844932 is about 275.2116585391.

The spelling of 20844932 in words is "twenty million, eight hundred forty-four thousand, nine hundred thirty-two".