11992378 has 16 divisors (see below), whose sum is σ = 19111464. Its totient is φ = 5624320.

The previous prime is 11992373. The next prime is 11992411. The reversal of 11992378 is 87329911.

It can be written as a sum of positive squares in 4 ways, for example, as 11992369 + 9 = 3463^2 + 3^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11992378.

It is not an unprimeable number, because it can be changed into a prime (11992373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17376 + ... + 18052.

Almost surely, 2^11992378 is an apocalyptic number.

11992378 is a deficient number, since it is larger than the sum of its proper divisors (7119086).

11992378 is a wasteful number, since it uses less digits than its factorization.

11992378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217.

The product of its digits is 27216, while the sum is 40.

The square root of 11992378 is about 3463.0012994511. The cubic root of 11992378 is about 228.8943659557.

The spelling of 11992378 in words is "eleven million, nine hundred ninety-two thousand, three hundred seventy-eight".