1317426 has 16 divisors (see below), whose sum is σ = 2874528. Its totient is φ = 399200.

The previous prime is 1317419. The next prime is 1317427. The reversal of 1317426 is 6247131.

It is a super-2 number, since 2×1317426² = 3471222530952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1317396 and 1317405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317427) 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, 9915 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (179658).

2^1317426 is an apocalyptic number.

1317426 is an abundant number, since it is smaller than the sum of its proper divisors (1557102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317426 is a wasteful number, since it uses less digits than its factorization.

1317426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19977.

The product of its digits is 1008, while the sum is 24.

The square root of 1317426 is about 1147.7917929660. The cubic root of 1317426 is about 109.6247821666.

It can be divided in two parts, 131 and 7426, that added together give a palindrome (7557).

The spelling of 1317426 in words is "one million, three hundred seventeen thousand, four hundred twenty-six".