1228478 has 8 divisors (see below), whose sum is σ = 1848360. Its totient is φ = 612360.

The previous prime is 1228459. The next prime is 1228489. The reversal of 1228478 is 8748221.

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, 113 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (231045).

2^1228478 is an apocalyptic number.

1228478 is a deficient number, since it is larger than the sum of its proper divisors (619882).

1228478 is a wasteful number, since it uses less digits than its factorization.

1228478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882.

The product of its digits is 7168, while the sum is 32.

The square root of 1228478 is about 1108.3672676509. The cubic root of 1228478 is about 107.0999154055.

The spelling of 1228478 in words is "one million, two hundred twenty-eight thousand, four hundred seventy-eight".