11389504 has 28 divisors (see below), whose sum is σ = 25830784. Its totient is φ = 4881024.

The previous prime is 11389501. The next prime is 11389517. The reversal of 11389504 is 40598311.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (11389501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12264 + ... + 13159.

It is an arithmetic number, because the mean of its divisors is an integer number (922528).

Almost surely, 2^11389504 is an apocalyptic number.

11389504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11389504 is an abundant number, since it is smaller than the sum of its proper divisors (14441280).

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

11389504 is an equidigital number, since it uses as much as digits as its factorization.

11389504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25442 (or 25432 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 11389504 is about 3374.8339218397. The cubic root of 11389504 is about 224.9926186879.

The spelling of 11389504 in words is "eleven million, three hundred eighty-nine thousand, five hundred four".