11778394 has 8 divisors (see below), whose sum is σ = 17765748. Its totient is φ = 5856480.

The previous prime is 11778391. The next prime is 11778409. The reversal of 11778394 is 49387711.

It can be written as a sum of positive squares in 2 ways, for example, as 6827769 + 4950625 = 2613^2 + 2225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11778391) 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, 15907 + ... + 16630.

Almost surely, 2^11778394 is an apocalyptic number.

11778394 is a deficient number, since it is larger than the sum of its proper divisors (5987354).

11778394 is a wasteful number, since it uses less digits than its factorization.

11778394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32720.

The product of its digits is 42336, while the sum is 40.

The square root of 11778394 is about 3431.9664916779. The cubic root of 11778394 is about 227.5247745028.

The spelling of 11778394 in words is "eleven million, seven hundred seventy-eight thousand, three hundred ninety-four".