1438028 has 12 divisors (see below), whose sum is σ = 2597952. Its totient is φ = 695760.

The previous prime is 1438009. The next prime is 1438033. The reversal of 1438028 is 8208341.

It is a junction number, because it is equal to n+sod(n) for n = 1437988 and 1438006.

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, 5675 + ... + 5922.

It is an arithmetic number, because the mean of its divisors is an integer number (216496).

2^1438028 is an apocalyptic number.

It is an amenable number.

1438028 is a deficient number, since it is larger than the sum of its proper divisors (1159924).

1438028 is a wasteful number, since it uses less digits than its factorization.

1438028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632 (or 11630 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1438028 is about 1199.1780518338. The cubic root of 1438028 is about 112.8727520547.

The spelling of 1438028 in words is "one million, four hundred thirty-eight thousand, twenty-eight".