18941132 has 12 divisors (see below), whose sum is σ = 37882320. Its totient is φ = 8117616.

The previous prime is 18941129. The next prime is 18941137. The reversal of 18941132 is 23114981.

18941132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18941095 and 18941104.

It is not an unprimeable number, because it can be changed into a prime (18941137) 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, 338207 + ... + 338262.

It is an arithmetic number, because the mean of its divisors is an integer number (3156860).

Almost surely, 2^18941132 is an apocalyptic number.

It is an amenable number.

18941132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18941132 is a wasteful number, since it uses less digits than its factorization.

18941132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676480 (or 676478 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 18941132 is about 4352.1410822720. The cubic root of 18941132 is about 266.5642947328.

Subtracting 18941132 from its reverse (23114981), we obtain a square (4173849 = 2043²).

The spelling of 18941132 in words is "eighteen million, nine hundred forty-one thousand, one hundred thirty-two".