1321426 has 8 divisors (see below), whose sum is σ = 1987020. Its totient is φ = 659088.

The previous prime is 1321421. The next prime is 1321429. The reversal of 1321426 is 6241231.

It can be written as a sum of positive squares in 2 ways, for example, as 1320201 + 1225 = 1149^2 + 35^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1321421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180 + ... + 2008.

2^1321426 is an apocalyptic number.

1321426 is a deficient number, since it is larger than the sum of its proper divisors (665594).

1321426 is an equidigital number, since it uses as much as digits as its factorization.

1321426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628.

The product of its digits is 288, while the sum is 19.

The square root of 1321426 is about 1149.5329486361. The cubic root of 1321426 is about 109.7356185202.

Adding to 1321426 its reverse (6241231), we get a palindrome (7562657).

The spelling of 1321426 in words is "one million, three hundred twenty-one thousand, four hundred twenty-six".