11009904 has 20 divisors (see below), whose sum is σ = 28442376. Its totient is φ = 3669952.

The previous prime is 11009881. The next prime is 11009927. The reversal of 11009904 is 40990011.

It is an interprime number because it is at equal distance from previous prime (11009881) and next prime (11009927).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114639 + ... + 114734.

Almost surely, 2^11009904 is an apocalyptic number.

It is an amenable number.

11009904 is an abundant number, since it is smaller than the sum of its proper divisors (17432472).

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

11009904 is a wasteful number, since it uses less digits than its factorization.

11009904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229384 (or 229378 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 11009904 is about 3318.1175386053. The cubic root of 11009904 is about 222.4647353950.

Adding to 11009904 its reverse (40990011), we get a palindrome (51999915).

The spelling of 11009904 in words is "eleven million, nine thousand, nine hundred four".