1289030 has 8 divisors (see below), whose sum is σ = 2320272. Its totient is φ = 515608.

The previous prime is 1289027. The next prime is 1289039. The reversal of 1289030 is 309821.

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

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1288987 and 1289005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64442 + ... + 64461.

It is an arithmetic number, because the mean of its divisors is an integer number (290034).

2^1289030 is an apocalyptic number.

1289030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1289030 is a deficient number, since it is larger than the sum of its proper divisors (1031242).

1289030 is a wasteful number, since it uses less digits than its factorization.

1289030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128910.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1289030 is about 1135.3545701674. The cubic root of 1289030 is about 108.8314315005.

The spelling of 1289030 in words is "one million, two hundred eighty-nine thousand, thirty".