11969424 has 80 divisors (see below), whose sum is σ = 34819200. Its totient is φ = 3936384.

The previous prime is 11969423. The next prime is 11969459. The reversal of 11969424 is 42496911.

It is a happy number.

It is a super-2 number, since 2×11969424² = 286534221783552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11969423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44362 + ... + 44630.

It is an arithmetic number, because the mean of its divisors is an integer number (435240).

Almost surely, 2^11969424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11969424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17409600).

11969424 is an abundant number, since it is smaller than the sum of its proper divisors (22849776).

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

11969424 is a wasteful number, since it uses less digits than its factorization.

11969424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 377 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 11969424 is about 3459.6855348427. The cubic root of 11969424 is about 228.7482343320.

The spelling of 11969424 in words is "eleven million, nine hundred sixty-nine thousand, four hundred twenty-four".