11921448 has 64 divisors (see below), whose sum is σ = 37163520. Its totient is φ = 3096000.

The previous prime is 11921443. The next prime is 11921473. The reversal of 11921448 is 84412911.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11921443) 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, 1378 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (580680).

Almost surely, 2^11921448 is an apocalyptic number.

It is an amenable number.

11921448 is an abundant number, since it is smaller than the sum of its proper divisors (25242072).

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

11921448 is a wasteful number, since it uses less digits than its factorization.

11921448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478 (or 6474 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 11921448 is about 3452.7449949279. The cubic root of 11921448 is about 228.4422012085.

The spelling of 11921448 in words is "eleven million, nine hundred twenty-one thousand, four hundred forty-eight".