1426 has 8 divisors (see below), whose sum is σ = 2304.
Its totient is φ = 660.
The previous prime is 1423. The next prime is 1427. The reversal of 1426 is 6241.
Subtracting from 1426 its product of digits (48), we obtain a triangular number (1378 = T52).
Adding to 1426 its reverse (6241), we get a palindrome (7667).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 12.
It is a nialpdrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (1423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31 + ... + 61.
It is an arithmetic number, because the mean of its divisors is an integer number (288).
1426 is the 31-st pentagonal number.
1426 is a deficient number, since it is larger than the sum of its proper divisors (878).
1426 is a wasteful number, since it uses less digits than its factorization.
1426 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56.
The product of its digits is 48, while the sum is 13.
The square root of 1426 is about 37.7624151770.
The cubic root of 1426 is about 11.2557172586.
The spelling of 1426 in words is "one thousand, four hundred twenty-six".