1141428 has 24 divisors (see below), whose sum is σ = 2701888. Its totient is φ = 374976.

The previous prime is 1141423. The next prime is 1141447. The reversal of 1141428 is 8241411.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 1527.

2^1141428 is an apocalyptic number.

It is an amenable number.

1141428 is an abundant number, since it is smaller than the sum of its proper divisors (1560460).

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

1141428 is a wasteful number, since it uses less digits than its factorization.

1141428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1381 counting only the distinct ones).

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

The square root of 1141428 is about 1068.3763381880. The cubic root of 1141428 is about 104.5079929480.

Adding to 1141428 its reverse (8241411), we get a palindrome (9382839).

The spelling of 1141428 in words is "one million, one hundred forty-one thousand, four hundred twenty-eight".