1319426 has 4 divisors (see below), whose sum is σ = 1979142. Its totient is φ = 659712.

The previous prime is 1319419. The next prime is 1319429. The reversal of 1319426 is 6249131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6249131 = 7 ⋅892733.

It can be written as a sum of positive squares in only one way, i.e., 808201 + 511225 = 899^2 + 715^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1319395 and 1319404.

It is not an unprimeable number, because it can be changed into a prime (1319429) 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 as a sum of consecutive naturals, namely, 329855 + ... + 329858.

2^1319426 is an apocalyptic number.

1319426 is a deficient number, since it is larger than the sum of its proper divisors (659716).

1319426 is an equidigital number, since it uses as much as digits as its factorization.

1319426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659715.

The product of its digits is 1296, while the sum is 26.

The square root of 1319426 is about 1148.6627007090. The cubic root of 1319426 is about 109.6802283445.

It can be divided in two parts, 131 and 9426, that multiplied together give a triangular number (1234806 = T₁₅₇₁).

The spelling of 1319426 in words is "one million, three hundred nineteen thousand, four hundred twenty-six".