1021242 has 8 divisors (see below), whose sum is σ = 2042496. Its totient is φ = 340412.

The previous prime is 1021217. The next prime is 1021243. The reversal of 1021242 is 2421201.

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

1021242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1021243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85098 + ... + 85109.

It is an arithmetic number, because the mean of its divisors is an integer number (255312).

2^1021242 is an apocalyptic number.

1021242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1021242 is a wasteful number, since it uses less digits than its factorization.

1021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170212.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1021242 is about 1010.5651883971. The cubic root of 1021242 is about 100.7031114235.

Adding to 1021242 its reverse (2421201), we get a palindrome (3442443).

The spelling of 1021242 in words is "one million, twenty-one thousand, two hundred forty-two".