11243904 has 128 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 3108864.

The previous prime is 11243891. The next prime is 11243923. The reversal of 11243904 is 40934211.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×11243904² = 252850754322432, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 126292 + ... + 126380.

It is an arithmetic number, because the mean of its divisors is an integer number (275400).

Almost surely, 2^11243904 is an apocalyptic number.

11243904 is a gapful number since it is divisible by the number (14) 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 11243904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17625600).

11243904 is an abundant number, since it is smaller than the sum of its proper divisors (24007296).

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

11243904 is an equidigital number, since it uses as much as digits as its factorization.

11243904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 11243904 is about 3353.1931050866. The cubic root of 11243904 is about 224.0297579513.

The spelling of 11243904 in words is "eleven million, two hundred forty-three thousand, nine hundred four".