2102042 has 8 divisors (see below), whose sum is σ = 3162132. Its totient is φ = 1048000.

The previous prime is 2102021. The next prime is 2102057. The reversal of 2102042 is 2402012.

It can be written as a sum of positive squares in 2 ways, for example, as 1585081 + 516961 = 1259^2 + 719^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509 + ... + 2112.

2^2102042 is an apocalyptic number.

2102042 is a deficient number, since it is larger than the sum of its proper divisors (1060090).

2102042 is a wasteful number, since it uses less digits than its factorization.

2102042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2102042 is about 1449.8420603638. The cubic root of 2102042 is about 128.0994100787.

Adding to 2102042 its reverse (2402012), we get a palindrome (4504054).

The spelling of 2102042 in words is "two million, one hundred two thousand, forty-two".