11278406 has 8 divisors (see below), whose sum is σ = 17031600. Its totient is φ = 5601208.

The previous prime is 11278391. The next prime is 11278411. The reversal of 11278406 is 60487211.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18626 + ... + 19221.

It is an arithmetic number, because the mean of its divisors is an integer number (2128950).

Almost surely, 2^11278406 is an apocalyptic number.

11278406 is a deficient number, since it is larger than the sum of its proper divisors (5753194).

11278406 is a wasteful number, since it uses less digits than its factorization.

11278406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37998.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 11278406 is about 3358.3338130686. Note that the first 3 decimals coincide. The cubic root of 11278406 is about 224.2586696109.

The spelling of 11278406 in words is "eleven million, two hundred seventy-eight thousand, four hundred six".