11278438 has 8 divisors (see below), whose sum is σ = 17808120. Its totient is φ = 5342400.

The previous prime is 11278411. The next prime is 11278439. The reversal of 11278438 is 83487211.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11278439) 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, 148363 + ... + 148438.

It is an arithmetic number, because the mean of its divisors is an integer number (2226015).

Almost surely, 2^11278438 is an apocalyptic number.

11278438 is a deficient number, since it is larger than the sum of its proper divisors (6529682).

11278438 is a wasteful number, since it uses less digits than its factorization.

11278438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296822.

The product of its digits is 10752, while the sum is 34.

The square root of 11278438 is about 3358.3385773325. The cubic root of 11278438 is about 224.2588817056.

The spelling of 11278438 in words is "eleven million, two hundred seventy-eight thousand, four hundred thirty-eight".