2102442 has 32 divisors (see below), whose sum is σ = 4466880. Its totient is φ = 658560.

The previous prime is 2102431. The next prime is 2102459. The reversal of 2102442 is 2442012.

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 15 ways as a sum of consecutive naturals, for example, 7342 + ... + 7622.

It is an arithmetic number, because the mean of its divisors is an integer number (139590).

2^2102442 is an apocalyptic number.

2102442 is an abundant number, since it is smaller than the sum of its proper divisors (2364438).

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

2102442 is a wasteful number, since it uses less digits than its factorization.

2102442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

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

The square root of 2102442 is about 1449.9799998621. The cubic root of 2102442 is about 128.1075349583.

Adding to 2102442 its reverse (2442012), we get a palindrome (4544454).

The spelling of 2102442 in words is "two million, one hundred two thousand, four hundred forty-two".