11949888 has 56 divisors (see below), whose sum is σ = 31963360. Its totient is φ = 3939840.

The previous prime is 11949869. The next prime is 11949893. The reversal of 11949888 is 88894911.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20643 + ... + 21213.

Almost surely, 2^11949888 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 11949888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15981680).

11949888 is an abundant number, since it is smaller than the sum of its proper divisors (20013472).

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

11949888 is a wasteful number, since it uses less digits than its factorization.

11949888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 685 counting only the distinct ones).

The product of its digits is 165888, while the sum is 48.

The square root of 11949888 is about 3456.8610038588. The cubic root of 11949888 is about 228.6237154192.

The spelling of 11949888 in words is "eleven million, nine hundred forty-nine thousand, eight hundred eighty-eight".