11345520 has 80 divisors (see below), whose sum is σ = 36060192. Its totient is φ = 2949120.

The previous prime is 11345501. The next prime is 11345549. The reversal of 11345520 is 2554311.

11345520 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 9264 + ... + 10416.

Almost surely, 2^11345520 is an apocalyptic number.

11345520 is a gapful number since it is divisible by the number (10) 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 11345520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18030096).

11345520 is an abundant number, since it is smaller than the sum of its proper divisors (24714672).

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

11345520 is a wasteful number, since it uses less digits than its factorization.

11345520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 11345520 is about 3368.3111495229. The cubic root of 11345520 is about 224.7026194736.

Adding to 11345520 its reverse (2554311), we get a palindrome (13899831).

The spelling of 11345520 in words is "eleven million, three hundred forty-five thousand, five hundred twenty".