2020642 has 32 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 855360.

The previous prime is 2020621. The next prime is 2020657. The reversal of 2020642 is 2460202.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18484 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (110880).

2^2020642 is an apocalyptic number.

2020642 is a deficient number, since it is larger than the sum of its proper divisors (1527518).

2020642 is a wasteful number, since it uses less digits than its factorization.

2020642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2020642 is about 1421.4928772245. The cubic root of 2020642 is about 126.4240770910.

Adding to 2020642 its reverse (2460202), we get a palindrome (4480844).

It can be divided in two parts, 2020 and 642, that added together give a palindrome (2662).

The spelling of 2020642 in words is "two million, twenty thousand, six hundred forty-two".