11378840 has 48 divisors (see below), whose sum is σ = 28153440. Its totient is φ = 4136000.

The previous prime is 11378839. The next prime is 11378849. The reversal of 11378840 is 4887311.

It is a junction number, because it is equal to n+sod(n) for n = 11378797 and 11378806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11378849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3665 + ... + 6015.

It is an arithmetic number, because the mean of its divisors is an integer number (586530).

Almost surely, 2^11378840 is an apocalyptic number.

11378840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11378840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14076720).

11378840 is an abundant number, since it is smaller than the sum of its proper divisors (16774600).

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

11378840 is a wasteful number, since it uses less digits than its factorization.

11378840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384 (or 2369 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 11378840 is about 3373.2536222466. The cubic root of 11378840 is about 224.9223765157.

The spelling of 11378840 in words is "eleven million, three hundred seventy-eight thousand, eight hundred forty".