1242042 has 16 divisors (see below), whose sum is σ = 2503872. Its totient is φ = 410720.

The previous prime is 1242029. The next prime is 1242061. The reversal of 1242042 is 2402421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67 + ... + 1577.

It is an arithmetic number, because the mean of its divisors is an integer number (156492).

2^1242042 is an apocalyptic number.

1242042 is an abundant number, since it is smaller than the sum of its proper divisors (1261830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242042 is a wasteful number, since it uses less digits than its factorization.

1242042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1242042 is about 1114.4693804677. The cubic root of 1242042 is about 107.4926477755.

Adding to 1242042 its reverse (2402421), we get a palindrome (3644463).

The spelling of 1242042 in words is "one million, two hundred forty-two thousand, forty-two".