11452220 has 48 divisors (see below), whose sum is σ = 27433728. Its totient is φ = 3978240.

The previous prime is 11452213. The next prime is 11452223. The reversal of 11452220 is 2225411.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11452223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3125 + ... + 5715.

It is an arithmetic number, because the mean of its divisors is an integer number (571536).

Almost surely, 2^11452220 is an apocalyptic number.

11452220 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 11452220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13716864).

11452220 is an abundant number, since it is smaller than the sum of its proper divisors (15981508).

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

11452220 is a wasteful number, since it uses less digits than its factorization.

11452220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630 (or 2628 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 11452220 is about 3384.1128822780. The cubic root of 11452220 is about 225.4048349432.

Adding to 11452220 its reverse (2225411), we get a palindrome (13677631).

The spelling of 11452220 in words is "eleven million, four hundred fifty-two thousand, two hundred twenty".