11380819 has 4 divisors (see below), whose sum is σ = 11524960. Its totient is φ = 11236680.

The previous prime is 11380801. The next prime is 11380843. The reversal of 11380819 is 91808311.

11380819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11380819 - 2²¹ = 9283667 is a prime.

It is a super-3 number, since 3×11380819³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11380619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71952 + ... + 72109.

It is an arithmetic number, because the mean of its divisors is an integer number (2881240).

Almost surely, 2^11380819 is an apocalyptic number.

11380819 is a deficient number, since it is larger than the sum of its proper divisors (144141).

11380819 is an equidigital number, since it uses as much as digits as its factorization.

11380819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144140.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 11380819 is about 3373.5469464645. The cubic root of 11380819 is about 224.9354152080.

The spelling of 11380819 in words is "eleven million, three hundred eighty thousand, eight hundred nineteen".