1428230 has 16 divisors (see below), whose sum is σ = 2706480. Its totient is φ = 541152.

The previous prime is 1428209. The next prime is 1428233. The reversal of 1428230 is 328241.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3569 + ... + 3948.

It is an arithmetic number, because the mean of its divisors is an integer number (169155).

2^1428230 is an apocalyptic number.

1428230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428230 is a deficient number, since it is larger than the sum of its proper divisors (1278250).

1428230 is a wasteful number, since it uses less digits than its factorization.

1428230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1428230 is about 1195.0857709805. The cubic root of 1428230 is about 112.6158148880.

The spelling of 1428230 in words is "one million, four hundred twenty-eight thousand, two hundred thirty".