1289238 has 16 divisors (see below), whose sum is σ = 2597376. Its totient is φ = 426600.

The previous prime is 1289237. The next prime is 1289261. The reversal of 1289238 is 8329821.

It is a junction number, because it is equal to n+sod(n) for n = 1289199 and 1289208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289231) 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, 195 + ... + 1617.

It is an arithmetic number, because the mean of its divisors is an integer number (162336).

2^1289238 is an apocalyptic number.

1289238 is an abundant number, since it is smaller than the sum of its proper divisors (1308138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1289238 is a wasteful number, since it uses less digits than its factorization.

1289238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579.

The product of its digits is 6912, while the sum is 33.

The square root of 1289238 is about 1135.4461678125. The cubic root of 1289238 is about 108.8372849253.

The spelling of 1289238 in words is "one million, two hundred eighty-nine thousand, two hundred thirty-eight".