1438828 has 12 divisors (see below), whose sum is σ = 2527560. Its totient is φ = 716672.

The previous prime is 1438817. The next prime is 1438831. The reversal of 1438828 is 8288341.

It is a junction number, because it is equal to n+sod(n) for n = 1438793 and 1438802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903 + ... + 1921.

It is an arithmetic number, because the mean of its divisors is an integer number (210630).

2^1438828 is an apocalyptic number.

It is an amenable number.

1438828 is a deficient number, since it is larger than the sum of its proper divisors (1088732).

1438828 is a wasteful number, since it uses less digits than its factorization.

1438828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1374 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 1438828 is about 1199.5115672639. The cubic root of 1438828 is about 112.8936791998.

The spelling of 1438828 in words is "one million, four hundred thirty-eight thousand, eight hundred twenty-eight".