1307439 has 12 divisors (see below), whose sum is σ = 2158416. Its totient is φ = 747072.

The previous prime is 1307437. The next prime is 1307441. The reversal of 1307439 is 9347031.

It is an interprime number because it is at equal distance from previous prime (1307437) and next prime (1307441).

It is not a de Polignac number, because 1307439 - 2¹ = 1307437 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10314 + ... + 10439.

It is an arithmetic number, because the mean of its divisors is an integer number (179868).

2^1307439 is an apocalyptic number.

1307439 is a deficient number, since it is larger than the sum of its proper divisors (850977).

1307439 is a wasteful number, since it uses less digits than its factorization.

1307439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20766 (or 20763 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1307439 is about 1143.4329888542. The cubic root of 1307439 is about 109.3470686773.

It can be divided in two parts, 130 and 7439, that added together give a square (7569 = 87²).

The spelling of 1307439 in words is "one million, three hundred seven thousand, four hundred thirty-nine".