18964232 has 32 divisors (see below), whose sum is σ = 41203200. Its totient is φ = 8014464.

The previous prime is 18964189. The next prime is 18964237. The reversal of 18964232 is 23246981.

It is a junction number, because it is equal to n+sod(n) for n = 18964192 and 18964201.

It is not an unprimeable number, because it can be changed into a prime (18964237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769 + ... + 6407.

It is an arithmetic number, because the mean of its divisors is an integer number (1287600).

Almost surely, 2^18964232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18964232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20601600).

18964232 is an abundant number, since it is smaller than the sum of its proper divisors (22238968).

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

18964232 is a wasteful number, since it uses less digits than its factorization.

18964232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725 (or 4721 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 18964232 is about 4354.7941397958. The cubic root of 18964232 is about 266.6726151451.

The spelling of 18964232 in words is "eighteen million, nine hundred sixty-four thousand, two hundred thirty-two".