11032720 has 20 divisors (see below), whose sum is σ = 25651260. Its totient is φ = 4413056.

The previous prime is 11032699. The next prime is 11032727. The reversal of 11032720 is 2723011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 7661824 = 1836^2 + 2768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11032694 and 11032703.

It is not an unprimeable number, because it can be changed into a prime (11032727) 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, 68875 + ... + 69034.

It is an arithmetic number, because the mean of its divisors is an integer number (1282563).

Almost surely, 2^11032720 is an apocalyptic number.

11032720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11032720 is an abundant number, since it is smaller than the sum of its proper divisors (14618540).

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

11032720 is a wasteful number, since it uses less digits than its factorization.

11032720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137922 (or 137916 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 11032720 is about 3321.5538532440. The cubic root of 11032720 is about 222.6183017732.

Adding to 11032720 its reverse (2723011), we get a palindrome (13755731).

The spelling of 11032720 in words is "eleven million, thirty-two thousand, seven hundred twenty".