20944132 has 36 divisors (see below), whose sum is σ = 40759180. Its totient is φ = 9408960.

The previous prime is 20944129. The next prime is 20944141. The reversal of 20944132 is 23144902.

It can be written as a sum of positive squares in 2 ways, for example, as 14318656 + 6625476 = 3784^2 + 2574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20944097 and 20944106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52558 + ... + 52954.

Almost surely, 2^20944132 is an apocalyptic number.

20944132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20944132 is a deficient number, since it is larger than the sum of its proper divisors (19815048).

20944132 is a wasteful number, since it uses less digits than its factorization.

20944132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20944132 is about 4576.4759367880. The cubic root of 20944132 is about 275.6475407100.

It can be divided in two parts, 2094 and 4132, that added together give a palindrome (6226).

The spelling of 20944132 in words is "twenty million, nine hundred forty-four thousand, one hundred thirty-two".