1339457 has 8 divisors (see below), whose sum is σ = 1540800. Its totient is φ = 1140624.

The previous prime is 1339433. The next prime is 1339463. The reversal of 1339457 is 7549331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1339457 - 2¹⁰ = 1338433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1339427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719 + ... + 1787.

It is an arithmetic number, because the mean of its divisors is an integer number (192600).

2^1339457 is an apocalyptic number.

It is an amenable number.

1339457 is a deficient number, since it is larger than the sum of its proper divisors (201343).

1339457 is a wasteful number, since it uses less digits than its factorization.

1339457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its digits is 11340, while the sum is 32.

The square root of 1339457 is about 1157.3491262363. The cubic root of 1339457 is about 110.2324835097.

The spelling of 1339457 in words is "one million, three hundred thirty-nine thousand, four hundred fifty-seven".