1428376 has 16 divisors (see below), whose sum is σ = 2723040. Its totient is φ = 702240.

The previous prime is 1428359. The next prime is 1428389. The reversal of 1428376 is 6738241.

It is a congruent number.

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, 976 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (170190).

2^1428376 is an apocalyptic number.

1428376 is the 976-th pentagonal number.

It is an amenable number.

1428376 is a deficient number, since it is larger than the sum of its proper divisors (1294664).

1428376 is a wasteful number, since it uses less digits than its factorization.

1428376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994 (or 2990 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1428376 is about 1195.1468529013. The cubic root of 1428376 is about 112.6196521198.

The spelling of 1428376 in words is "one million, four hundred twenty-eight thousand, three hundred seventy-six".