12388632 has 16 divisors (see below), whose sum is σ = 30971640. Its totient is φ = 4129536.

The previous prime is 12388609. The next prime is 12388633. The reversal of 12388632 is 23688321.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12388593 and 12388602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388633) 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, 258073 + ... + 258120.

Almost surely, 2^12388632 is an apocalyptic number.

12388632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12388632 is an abundant number, since it is smaller than the sum of its proper divisors (18583008).

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

12388632 is a wasteful number, since it uses less digits than its factorization.

12388632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516202 (or 516198 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 12388632 is about 3519.7488546770. The cubic root of 12388632 is about 231.3881519761.

It can be divided in two parts, 1238 and 8632, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 12388632 in words is "twelve million, three hundred eighty-eight thousand, six hundred thirty-two".