1031428 has 6 divisors (see below), whose sum is σ = 1805006. Its totient is φ = 515712.

The previous prime is 1031423. The next prime is 1031431. The reversal of 1031428 is 8241301.

It can be written as a sum of positive squares in only one way, i.e., 611524 + 419904 = 782^2 + 648^2 .

It is not an unprimeable number, because it can be changed into a prime (1031423) by changing a digit.

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 as a sum of consecutive naturals, namely, 128925 + ... + 128932.

2^1031428 is an apocalyptic number.

It is an amenable number.

1031428 is a deficient number, since it is larger than the sum of its proper divisors (773578).

1031428 is a wasteful number, since it uses less digits than its factorization.

1031428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257861 (or 257859 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1031428 is about 1015.5924379396. The cubic root of 1031428 is about 101.0368130355.

Adding to 1031428 its reverse (8241301), we get a palindrome (9272729).

The spelling of 1031428 in words is "one million, thirty-one thousand, four hundred twenty-eight".