11453520 has 80 divisors (see below), whose sum is σ = 38247552. Its totient is φ = 2818560.

The previous prime is 11453513. The next prime is 11453531. The reversal of 11453520 is 2535411.

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, 1285 + ... + 4955.

Almost surely, 2^11453520 is an apocalyptic number.

11453520 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 11453520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19123776).

11453520 is an abundant number, since it is smaller than the sum of its proper divisors (26794032).

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

11453520 is a wasteful number, since it uses less digits than its factorization.

11453520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700 (or 3694 counting only the distinct ones).

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

The square root of 11453520 is about 3384.3049507986. The cubic root of 11453520 is about 225.4133635720.

Adding to 11453520 its reverse (2535411), we get a palindrome (13988931).

The spelling of 11453520 in words is "eleven million, four hundred fifty-three thousand, five hundred twenty".