1021042 has 8 divisors (see below), whose sum is σ = 1670832. Its totient is φ = 464100.

The previous prime is 1021019. The next prime is 1021043. The reversal of 1021042 is 2401201.

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 (1021043) 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, 23184 + ... + 23227.

It is an arithmetic number, because the mean of its divisors is an integer number (208854).

2^1021042 is an apocalyptic number.

1021042 is a deficient number, since it is larger than the sum of its proper divisors (649790).

1021042 is a wasteful number, since it uses less digits than its factorization.

1021042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46424.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1021042 is about 1010.4662290250. The cubic root of 1021042 is about 100.6965370962.

Adding to 1021042 its reverse (2401201), we get a palindrome (3422243).

The spelling of 1021042 in words is "one million, twenty-one thousand, forty-two".