18936352 has 48 divisors (see below), whose sum is σ = 38669400. Its totient is φ = 9123840.

The previous prime is 18936343. The next prime is 18936353. The reversal of 18936352 is 25363981.

It can be written as a sum of positive squares in 4 ways, for example, as 9960336 + 8976016 = 3156^2 + 2996^2 .

It is not an unprimeable number, because it can be changed into a prime (18936353) 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, 173674 + ... + 173782.

Almost surely, 2^18936352 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 18936352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19334700).

18936352 is an abundant number, since it is smaller than the sum of its proper divisors (19733048).

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

18936352 is a wasteful number, since it uses less digits than its factorization.

18936352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 261 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 18936352 is about 4351.5918926296. The cubic root of 18936352 is about 266.5418693830.

The spelling of 18936352 in words is "eighteen million, nine hundred thirty-six thousand, three hundred fifty-two".