1308439 has 8 divisors (see below), whose sum is σ = 1511568. Its totient is φ = 1119360.

The previous prime is 1308421. The next prime is 1308457. The reversal of 1308439 is 9348031.

It is an interprime number because it is at equal distance from previous prime (1308421) and next prime (1308457).

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

It is not a de Polignac number, because 1308439 - 2⁹ = 1307927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308499) 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, 3312 + ... + 3685.

It is an arithmetic number, because the mean of its divisors is an integer number (188946).

2^1308439 is an apocalyptic number.

1308439 is a deficient number, since it is larger than the sum of its proper divisors (203129).

1308439 is a wasteful number, since it uses less digits than its factorization.

1308439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7025.

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

The square root of 1308439 is about 1143.8701849423. The cubic root of 1308439 is about 109.3749397551.

The spelling of 1308439 in words is "one million, three hundred eight thousand, four hundred thirty-nine".