1430389 has 8 divisors (see below), whose sum is σ = 1473120. Its totient is φ = 1388400.

The previous prime is 1430381. The next prime is 1430413. The reversal of 1430389 is 9830341.

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

It is a cyclic number.

It is not a de Polignac number, because 1430389 - 2³ = 1430381 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1430389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430381) 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, 7902 + ... + 8080.

It is an arithmetic number, because the mean of its divisors is an integer number (184140).

2^1430389 is an apocalyptic number.

It is an amenable number.

1430389 is a deficient number, since it is larger than the sum of its proper divisors (42731).

1430389 is a wasteful number, since it uses less digits than its factorization.

1430389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1430389 is about 1195.9887123213. The cubic root of 1430389 is about 112.6725319745.

It can be divided in two parts, 14 and 30389, that added together give a palindrome (30403).

The spelling of 1430389 in words is "one million, four hundred thirty thousand, three hundred eighty-nine".