1238389 has 6 divisors (see below), whose sum is σ = 1295126. Its totient is φ = 1184040.

The previous prime is 1238383. The next prime is 1238407. The reversal of 1238389 is 9838321.

It can be written as a sum of positive squares in only one way, i.e., 1119364 + 119025 = 1058^2 + 345^2 .

It is not a de Polignac number, because 1238389 - 2³ = 1238381 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642 + ... + 1699.

2^1238389 is an apocalyptic number.

It is an amenable number.

1238389 is a deficient number, since it is larger than the sum of its proper divisors (56737).

1238389 is an equidigital number, since it uses as much as digits as its factorization.

1238389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387 (or 2364 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 1238389 is about 1112.8292771131. The cubic root of 1238389 is about 107.3871612093.

The spelling of 1238389 in words is "one million, two hundred thirty-eight thousand, three hundred eighty-nine".