1428478 has 8 divisors (see below), whose sum is σ = 2170080. Its totient is φ = 705120.

The previous prime is 1428473. The next prime is 1428491. The reversal of 1428478 is 8748241.

It is a sphenic number, since it is the product of 3 distinct primes.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4363 + ... + 4678.

It is an arithmetic number, because the mean of its divisors is an integer number (271260).

2^1428478 is an apocalyptic number.

1428478 is a deficient number, since it is larger than the sum of its proper divisors (741602).

1428478 is an equidigital number, since it uses as much as digits as its factorization.

1428478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9122.

The product of its digits is 14336, while the sum is 34.

The square root of 1428478 is about 1195.1895247198. The cubic root of 1428478 is about 112.6223327705.

The spelling of 1428478 in words is "one million, four hundred twenty-eight thousand, four hundred seventy-eight".