11421443 has 8 divisors (see below), whose sum is σ = 12496896. Its totient is φ = 10352200.

The previous prime is 11421437. The next prime is 11421461. The reversal of 11421443 is 34412411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11421443 - 2⁶ = 11421379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11421143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858 + ... + 5568.

It is an arithmetic number, because the mean of its divisors is an integer number (1562112).

Almost surely, 2^11421443 is an apocalyptic number.

11421443 is a deficient number, since it is larger than the sum of its proper divisors (1075453).

11421443 is a wasteful number, since it uses less digits than its factorization.

11421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105.

The product of its digits is 384, while the sum is 20.

The square root of 11421443 is about 3379.5625456559. The cubic root of 11421443 is about 225.2027341459.

Adding to 11421443 its reverse (34412411), we get a palindrome (45833854).

The spelling of 11421443 in words is "eleven million, four hundred twenty-one thousand, four hundred forty-three".