1114428 has 24 divisors (see below), whose sum is σ = 2972032. Its totient is φ = 318384.

The previous prime is 1114427. The next prime is 1114447. The reversal of 1114428 is 8244111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1114423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6550 + ... + 6717.

2^1114428 is an apocalyptic number.

It is an amenable number.

1114428 is an abundant number, since it is smaller than the sum of its proper divisors (1857604).

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

1114428 is a wasteful number, since it uses less digits than its factorization.

1114428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13281 (or 13279 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 1114428 is about 1055.6647195014. The cubic root of 1114428 is about 103.6773779296.

Adding to 1114428 its reverse (8244111), we get a palindrome (9358539).

The spelling of 1114428 in words is "one million, one hundred fourteen thousand, four hundred twenty-eight".