11913504 has 48 divisors (see below), whose sum is σ = 31483872. Its totient is φ = 3944448.

The previous prime is 11913497. The next prime is 11913509. The reversal of 11913504 is 40531911.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18207 + ... + 18849.

It is an arithmetic number, because the mean of its divisors is an integer number (655914).

Almost surely, 2^11913504 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 11913504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15741936).

11913504 is an abundant number, since it is smaller than the sum of its proper divisors (19570368).

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

11913504 is a wasteful number, since it uses less digits than its factorization.

11913504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 11913504 is about 3451.5944141802. The cubic root of 11913504 is about 228.3914481991.

The spelling of 11913504 in words is "eleven million, nine hundred thirteen thousand, five hundred four".