4074021 has 12 divisors (see below), whose sum is σ = 6725472. Its totient is φ = 2327976.

The previous prime is 4074011. The next prime is 4074023. The reversal of 4074021 is 1204704.

It is a happy number.

4074021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4074021 - 2⁶ = 4073957 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 4073985 and 4074003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4074023) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 32271 + ... + 32396.

It is an arithmetic number, because the mean of its divisors is an integer number (560456).

Almost surely, 2^4074021 is an apocalyptic number.

It is an amenable number.

4074021 is a deficient number, since it is larger than the sum of its proper divisors (2651451).

4074021 is a wasteful number, since it uses less digits than its factorization.

4074021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64680 (or 64677 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 4074021 is about 2018.4204220132. The cubic root of 4074021 is about 159.7133016865.

Adding to 4074021 its reverse (1204704), we get a palindrome (5278725).

The spelling of 4074021 in words is "four million, seventy-four thousand, twenty-one".