1290026 has 4 divisors (see below), whose sum is σ = 1935042. Its totient is φ = 645012.

The previous prime is 1290019. The next prime is 1290031. The reversal of 1290026 is 6200921.

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., 931225 + 358801 = 965^2 + 599^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322505 + ... + 322508.

2^1290026 is an apocalyptic number.

1290026 is a deficient number, since it is larger than the sum of its proper divisors (645016).

1290026 is an equidigital number, since it uses as much as digits as its factorization.

1290026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645015.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1290026 is about 1135.7931149642. The cubic root of 1290026 is about 108.8594546910.

Adding to 1290026 its reverse (6200921), we get a palindrome (7490947).

The spelling of 1290026 in words is "one million, two hundred ninety thousand, twenty-six".