4026420 has 36 divisors (see below), whose sum is σ = 12214020. Its totient is φ = 1073664.

The previous prime is 4026409. The next prime is 4026437. The reversal of 4026420 is 246204.

4026420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 2377764 = 1284^2 + 1542^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4026393 and 4026402.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 11005 + ... + 11364.

Almost surely, 2^4026420 is an apocalyptic number.

It is an amenable number.

4026420 is an abundant number, since it is smaller than the sum of its proper divisors (8187600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4026420 is a wasteful number, since it uses less digits than its factorization.

4026420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22384 (or 22379 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4026420 is about 2006.5941293645. The cubic root of 4026420 is about 159.0888313396.

The spelling of 4026420 in words is "four million, twenty-six thousand, four hundred twenty".