1242826 has 12 divisors (see below), whose sum is σ = 2019222. Its totient is φ = 573456.

The previous prime is 1242823. The next prime is 1242827. The reversal of 1242826 is 6282421.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 819025 + 423801 = 905^2 + 651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1242826.

It is not an unprimeable number, because it can be changed into a prime (1242823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1501 + ... + 2176.

2^1242826 is an apocalyptic number.

1242826 is a deficient number, since it is larger than the sum of its proper divisors (776396).

1242826 is a wasteful number, since it uses less digits than its factorization.

1242826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705 (or 3692 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 1242826 is about 1114.8210618750. The cubic root of 1242826 is about 107.5152601376.

The spelling of 1242826 in words is "one million, two hundred forty-two thousand, eight hundred twenty-six".