11421432 has 192 divisors, whose sum is σ = 38304000. Its totient is φ = 3136320.

The previous prime is 11421401. The next prime is 11421437. The reversal of 11421432 is 23412411.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421437) 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 47 ways as a sum of consecutive naturals, for example, 496573 + ... + 496595.

It is an arithmetic number, because the mean of its divisors is an integer number (199500).

Almost surely, 2^11421432 is an apocalyptic number.

11421432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11421432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19152000).

11421432 is an abundant number, since it is smaller than the sum of its proper divisors (26882568).

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

11421432 is a wasteful number, since it uses less digits than its factorization.

11421432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 58 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 11421432 is about 3379.5609182259. The cubic root of 11421432 is about 225.2026618482.

Adding to 11421432 its reverse (23412411), we get a palindrome (34833843).

The spelling of 11421432 in words is "eleven million, four hundred twenty-one thousand, four hundred thirty-two".