11278422 has 24 divisors (see below), whose sum is σ = 24504480. Its totient is φ = 3749040.

The previous prime is 11278411. The next prime is 11278439. The reversal of 11278422 is 22487211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8547 + ... + 9777.

It is an arithmetic number, because the mean of its divisors is an integer number (1021020).

Almost surely, 2^11278422 is an apocalyptic number.

11278422 is an abundant number, since it is smaller than the sum of its proper divisors (13226058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11278422 is a wasteful number, since it uses less digits than its factorization.

11278422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 1745 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 11278422 is about 3358.3361952014. The cubic root of 11278422 is about 224.2587756583.

It can be divided in two parts, 1127842 and 2, that added together give a square (1127844 = 1062²).

The spelling of 11278422 in words is "eleven million, two hundred seventy-eight thousand, four hundred twenty-two".