11143404 has 18 divisors (see below), whose sum is σ = 28168140. Its totient is φ = 3714456.

The previous prime is 11143399. The next prime is 11143411. The reversal of 11143404 is 40434111.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154734 + ... + 154805.

Almost surely, 2^11143404 is an apocalyptic number.

It is an amenable number.

11143404 is an abundant number, since it is smaller than the sum of its proper divisors (17024736).

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

11143404 is a wasteful number, since it uses less digits than its factorization.

11143404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309549 (or 309544 counting only the distinct ones).

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

The square root of 11143404 is about 3338.1737522184. The cubic root of 11143404 is about 223.3602868388.

Adding to 11143404 its reverse (40434111), we get a palindrome (51577515).

The spelling of 11143404 in words is "eleven million, one hundred forty-three thousand, four hundred four".