1242026 has 4 divisors (see below), whose sum is σ = 1863042. Its totient is φ = 621012.

The previous prime is 1242001. The next prime is 1242029. The reversal of 1242026 is 6202421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6202421 = 37 ⋅167633.

It can be written as a sum of positive squares in only one way, i.e., 1207801 + 34225 = 1099^2 + 185^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1241995 and 1242013.

It is not an unprimeable number, because it can be changed into a prime (1242029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310505 + ... + 310508.

2^1242026 is an apocalyptic number.

1242026 is a deficient number, since it is larger than the sum of its proper divisors (621016).

1242026 is an equidigital number, since it uses as much as digits as its factorization.

1242026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621015.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1242026 is about 1114.4622021406. The cubic root of 1242026 is about 107.4921861997.

Adding to 1242026 its reverse (6202421), we get a palindrome (7444447).

The spelling of 1242026 in words is "one million, two hundred forty-two thousand, twenty-six".