11229904 has 20 divisors (see below), whose sum is σ = 24866464. Its totient is φ = 4812768.

The previous prime is 11229863. The next prime is 11229947. The reversal of 11229904 is 40992211.

It is a happy number.

11229904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11229904² = 252221487698432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 50022 + ... + 50245.

Almost surely, 2^11229904 is an apocalyptic number.

11229904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11229904 is an abundant number, since it is smaller than the sum of its proper divisors (13636560).

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

11229904 is a wasteful number, since it uses less digits than its factorization.

11229904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100282 (or 100276 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 11229904 is about 3351.1048924198. The cubic root of 11229904 is about 223.9367380877.

It can be divided in two parts, 1122 and 9904, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 11229904 in words is "eleven million, two hundred twenty-nine thousand, nine hundred four".