1316439 has 8 divisors (see below), whose sum is σ = 1950320. Its totient is φ = 877608.

The previous prime is 1316437. The next prime is 1316479. The reversal of 1316439 is 9346131.

1316439 is a `hidden beast` number, since 13 + 1 + 643 + 9 = 666.

It is not a de Polignac number, because 1316439 - 2¹ = 1316437 is a prime.

It is a super-3 number, since 3×1316439³ = 6844212333897337557, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 48757 = 1316439 / (1 + 3 + 1 + 6 + 4 + 3 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316431) 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, 24352 + ... + 24405.

It is an arithmetic number, because the mean of its divisors is an integer number (243790).

2^1316439 is an apocalyptic number.

1316439 is a deficient number, since it is larger than the sum of its proper divisors (633881).

1316439 is an equidigital number, since it uses as much as digits as its factorization.

1316439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48766 (or 48760 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 1316439 is about 1147.3617563785. The cubic root of 1316439 is about 109.5973987963.

It can be divided in two parts, 13164 and 39, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 1316439 in words is "one million, three hundred sixteen thousand, four hundred thirty-nine".