11780438 has 16 divisors (see below), whose sum is σ = 18470160. Its totient is φ = 5628000.

The previous prime is 11780429. The next prime is 11780443. The reversal of 11780438 is 83408711.

11780438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4853 + ... + 6863.

It is an arithmetic number, because the mean of its divisors is an integer number (1154385).

Almost surely, 2^11780438 is an apocalyptic number.

11780438 is a deficient number, since it is larger than the sum of its proper divisors (6689722).

11780438 is a wasteful number, since it uses less digits than its factorization.

11780438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143.

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

The square root of 11780438 is about 3432.2642672149. The cubic root of 11780438 is about 227.5379351465.

The spelling of 11780438 in words is "eleven million, seven hundred eighty thousand, four hundred thirty-eight".