1428004 has 12 divisors (see below), whose sum is σ = 2531200. Its totient is φ = 704808.

The previous prime is 1427999. The next prime is 1428013. The reversal of 1428004 is 4008241.

It is a congruent number.

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, 1944 + ... + 2575.

2^1428004 is an apocalyptic number.

It is an amenable number.

1428004 is a deficient number, since it is larger than the sum of its proper divisors (1103196).

1428004 is a wasteful number, since it uses less digits than its factorization.

1428004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602 (or 4600 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1428004 is about 1194.9912133568. The cubic root of 1428004 is about 112.6098745477.

The spelling of 1428004 in words is "one million, four hundred twenty-eight thousand, four".