1242898 has 8 divisors (see below), whose sum is σ = 1890108. Its totient is φ = 612864.

The previous prime is 1242893. The next prime is 1242929. The reversal of 1242898 is 8982421.

It can be written as a sum of positive squares in 2 ways, for example, as 1096209 + 146689 = 1047^2 + 383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1242893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4111 + ... + 4402.

2^1242898 is an apocalyptic number.

1242898 is a deficient number, since it is larger than the sum of its proper divisors (647210).

1242898 is an equidigital number, since it uses as much as digits as its factorization.

1242898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8588.

The product of its digits is 9216, while the sum is 34.

The square root of 1242898 is about 1114.8533535851. The cubic root of 1242898 is about 107.5173363063.

The spelling of 1242898 in words is "one million, two hundred forty-two thousand, eight hundred ninety-eight".