2021442442 has 8 divisors (see below), whose sum is σ = 3032902116. Its totient is φ = 1010475072.

The previous prime is 2021442403. The next prime is 2021442457. The reversal of 2021442442 is 2442441202.

It can be written as a sum of positive squares in 2 ways, for example, as 1881043641 + 140398801 = 43371^2 + 11849^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112633 + ... + 129340.

Almost surely, 2^2021442442 is an apocalyptic number.

2021442442 is a deficient number, since it is larger than the sum of its proper divisors (1011459674).

2021442442 is a wasteful number, since it uses less digits than its factorization.

2021442442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246152.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 2021442442 is about 44960.4542014424. The cubic root of 2021442442 is about 1264.4076844983.

Adding to 2021442442 its reverse (2442441202), we get a palindrome (4463883644).

The spelling of 2021442442 in words is "two billion, twenty-one million, four hundred forty-two thousand, four hundred forty-two".