11231904 has 48 divisors (see below), whose sum is σ = 29877120. Its totient is φ = 3694080.

The previous prime is 11231893. The next prime is 11231911. The reversal of 11231904 is 40913211.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6844 + ... + 8324.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 2^11231904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11231904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14938560).

11231904 is an abundant number, since it is smaller than the sum of its proper divisors (18645216).

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

11231904 is a wasteful number, since it uses less digits than its factorization.

11231904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 11231904 is about 3351.4032881765. The cubic root of 11231904 is about 223.9500313711.

The spelling of 11231904 in words is "eleven million, two hundred thirty-one thousand, nine hundred four".