11381432 has 32 divisors (see below), whose sum is σ = 23036400. Its totient is φ = 5251584.

The previous prime is 11381431. The next prime is 11381443. The reversal of 11381432 is 23418311.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11381398 and 11381407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6419 + ... + 7997.

Almost surely, 2^11381432 is an apocalyptic number.

It is an amenable number.

11381432 is an abundant number, since it is smaller than the sum of its proper divisors (11654968).

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

11381432 is a wasteful number, since it uses less digits than its factorization.

11381432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655 (or 1651 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 11381432 is about 3373.6377991717. The cubic root of 11381432 is about 224.9394536676.

Adding to 11381432 its reverse (23418311), we get a palindrome (34799743).

The spelling of 11381432 in words is "eleven million, three hundred eighty-one thousand, four hundred thirty-two".