1228418 has 8 divisors (see below), whose sum is σ = 1873020. Its totient is φ = 604080.

The previous prime is 1228399. The next prime is 1228429. The reversal of 1228418 is 8148221.

It can be written as a sum of positive squares in 2 ways, for example, as 1014049 + 214369 = 1007^2 + 463^2 .

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

It is an Ulam 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, 4913 + ... + 5156.

2^1228418 is an apocalyptic number.

1228418 is a deficient number, since it is larger than the sum of its proper divisors (644602).

1228418 is a wasteful number, since it uses less digits than its factorization.

1228418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132.

The product of its digits is 1024, while the sum is 26.

The square root of 1228418 is about 1108.3402004800. The cubic root of 1228418 is about 107.0981717575.

The spelling of 1228418 in words is "one million, two hundred twenty-eight thousand, four hundred eighteen".