1428430 has 16 divisors (see below), whose sum is σ = 2603664. Its totient is φ = 564160.

The previous prime is 1428419. The next prime is 1428431. The reversal of 1428430 is 348241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428431) 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 in 7 ways as a sum of consecutive naturals, for example, 31 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (162729).

2^1428430 is an apocalyptic number.

1428430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428430 is a deficient number, since it is larger than the sum of its proper divisors (1175234).

1428430 is a wasteful number, since it uses less digits than its factorization.

1428430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1428430 is about 1195.1694440539. The cubic root of 1428430 is about 112.6210713037.

The spelling of 1428430 in words is "one million, four hundred twenty-eight thousand, four hundred thirty".