11220432 has 20 divisors (see below), whose sum is σ = 28986240. Its totient is φ = 3740128.

The previous prime is 11220427. The next prime is 11220457. The reversal of 11220432 is 23402211.

11220432 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 super-3 number, since 3×11220432³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116832 + ... + 116927.

It is an arithmetic number, because the mean of its divisors is an integer number (1449312).

Almost surely, 2^11220432 is an apocalyptic number.

11220432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220432 is an abundant number, since it is smaller than the sum of its proper divisors (17765808).

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

11220432 is a wasteful number, since it uses less digits than its factorization.

11220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233770 (or 233764 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 11220432 is about 3349.6913290630. The cubic root of 11220432 is about 223.8737596500.

Adding to 11220432 its reverse (23402211), we get a palindrome (34622643).

The spelling of 11220432 in words is "eleven million, two hundred twenty thousand, four hundred thirty-two".