11229980 has 24 divisors (see below), whose sum is σ = 24609312. Its totient is φ = 4296512.

The previous prime is 11229973. The next prime is 11230031. The reversal of 11229980 is 8992211.

It is a happy number.

It is a super-2 number, since 2×11229980² = 252224901600800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11747 + ... + 12666.

It is an arithmetic number, because the mean of its divisors is an integer number (1025388).

Almost surely, 2^11229980 is an apocalyptic number.

11229980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11229980 is an abundant number, since it is smaller than the sum of its proper divisors (13379332).

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

11229980 is a wasteful number, since it uses less digits than its factorization.

11229980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24445 (or 24443 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 11229980 is about 3351.1162319442. The cubic root of 11229980 is about 223.9372432613.

The spelling of 11229980 in words is "eleven million, two hundred twenty-nine thousand, nine hundred eighty".