2021042338 has 24 divisors (see below), whose sum is σ = 3679843392. Its totient is φ = 828500904.

The previous prime is 2021042291. The next prime is 2021042339. The reversal of 2021042338 is 8332401202.

It is a super-2 number, since 2×2021042338² = 8169224263977012488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021042339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446070 + ... + 450577.

It is an arithmetic number, because the mean of its divisors is an integer number (153326808).

Almost surely, 2^2021042338 is an apocalyptic number.

2021042338 is a deficient number, since it is larger than the sum of its proper divisors (1658801054).

2021042338 is a wasteful number, since it uses less digits than its factorization.

2021042338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896686 (or 896679 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2021042338 is about 44956.0044710381. The cubic root of 2021042338 is about 1264.3242576109.

The spelling of 2021042338 in words is "two billion, twenty-one million, forty-two thousand, three hundred thirty-eight".