1379426 has 4 divisors (see below), whose sum is σ = 2069142. Its totient is φ = 689712.

The previous prime is 1379423. The next prime is 1379447. The reversal of 1379426 is 6249731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 22201 = 1165^2 + 149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1379392 and 1379401.

It is not an unprimeable number, because it can be changed into a prime (1379423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344855 + ... + 344858.

2^1379426 is an apocalyptic number.

1379426 is a deficient number, since it is larger than the sum of its proper divisors (689716).

1379426 is an equidigital number, since it uses as much as digits as its factorization.

1379426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689715.

The product of its digits is 9072, while the sum is 32.

The square root of 1379426 is about 1174.4896764127. The cubic root of 1379426 is about 111.3181898997.

The spelling of 1379426 in words is "one million, three hundred seventy-nine thousand, four hundred twenty-six".