2021435 has 16 divisors (see below), whose sum is σ = 2642976. Its totient is φ = 1475328.

The previous prime is 2021431. The next prime is 2021471. The reversal of 2021435 is 5341202.

It is a cyclic number.

It is not a de Polignac number, because 2021435 - 2² = 2021431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8792 + ... + 9018.

It is an arithmetic number, because the mean of its divisors is an integer number (165186).

2^2021435 is an apocalyptic number.

2021435 is a deficient number, since it is larger than the sum of its proper divisors (621541).

2021435 is a wasteful number, since it uses less digits than its factorization.

2021435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2021435 is about 1421.7717819678. The cubic root of 2021435 is about 126.4406132845.

Adding to 2021435 its reverse (5341202), we get a palindrome (7362637).

The spelling of 2021435 in words is "two million, twenty-one thousand, four hundred thirty-five".