11220378 has 32 divisors (see below), whose sum is σ = 24432576. Its totient is φ = 3414528.

The previous prime is 11220367. The next prime is 11220379. The reversal of 11220378 is 87302211.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11220379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6825 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (763518).

Almost surely, 2^11220378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11220378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12216288).

11220378 is an abundant number, since it is smaller than the sum of its proper divisors (13212198).

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

11220378 is a wasteful number, since it uses less digits than its factorization.

11220378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 11220378 is about 3349.6832686091. The cubic root of 11220378 is about 223.8734005075.

Adding to 11220378 its reverse (87302211), we get a palindrome (98522589).

The spelling of 11220378 in words is "eleven million, two hundred twenty thousand, three hundred seventy-eight".