1214428 has 12 divisors (see below), whose sum is σ = 2154880. Its totient is φ = 598752.

The previous prime is 1214417. The next prime is 1214431. The reversal of 1214428 is 8244121.

It is a junction number, because it is equal to n+sod(n) for n = 1214399 and 1214408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1788 + ... + 2371.

2^1214428 is an apocalyptic number.

It is an amenable number.

1214428 is a deficient number, since it is larger than the sum of its proper divisors (940452).

1214428 is a wasteful number, since it uses less digits than its factorization.

1214428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236 (or 4234 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 1214428 is about 1102.0108892384. The cubic root of 1214428 is about 106.6900512966.

Adding to 1214428 its reverse (8244121), we get a palindrome (9458549).

The spelling of 1214428 in words is "one million, two hundred fourteen thousand, four hundred twenty-eight".