11889378 has 12 divisors (see below), whose sum is σ = 25760358. Its totient is φ = 3963120.

The previous prime is 11889373. The next prime is 11889389. The reversal of 11889378 is 87398811.

It can be written as a sum of positive squares in only one way, i.e., 11881809 + 7569 = 3447^2 + 87^2 .

It is not an unprimeable number, because it can be changed into a prime (11889373) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 330243 + ... + 330278.

Almost surely, 2^11889378 is an apocalyptic number.

11889378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11889378 is an abundant number, since it is smaller than the sum of its proper divisors (13870980).

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

11889378 is a wasteful number, since it uses less digits than its factorization.

11889378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660529 (or 660526 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 11889378 is about 3448.0977364338. The cubic root of 11889378 is about 228.2371724065.

The spelling of 11889378 in words is "eleven million, eight hundred eighty-nine thousand, three hundred seventy-eight".