2021442 has 16 divisors (see below), whose sum is σ = 4065600. Its totient is φ = 670032.

The previous prime is 2021431. The next prime is 2021471. The reversal of 2021442 is 2441202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (254100).

2^2021442 is an apocalyptic number.

2021442 is an abundant number, since it is smaller than the sum of its proper divisors (2044158).

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

2021442 is a wasteful number, since it uses less digits than its factorization.

2021442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897.

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

The square root of 2021442 is about 1421.7742436829. The cubic root of 2021442 is about 126.4407592342.

Adding to 2021442 its reverse (2441202), we get a palindrome (4462644).

The spelling of 2021442 in words is "two million, twenty-one thousand, four hundred forty-two".