1428472 has 8 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 714232.

The previous prime is 1428431. The next prime is 1428473. The reversal of 1428472 is 2748241.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89272 + ... + 89287.

It is an arithmetic number, because the mean of its divisors is an integer number (334800).

2^1428472 is an apocalyptic number.

It is an amenable number.

1428472 is a deficient number, since it is larger than the sum of its proper divisors (1249928).

1428472 is a wasteful number, since it uses less digits than its factorization.

1428472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178565 (or 178561 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 1428472 is about 1195.1870146550. The cubic root of 1428472 is about 112.6221750887.

The spelling of 1428472 in words is "one million, four hundred twenty-eight thousand, four hundred seventy-two".