4538420 has 24 divisors (see below), whose sum is σ = 9789864. Its totient is φ = 1766016.

The previous prime is 4538407. The next prime is 4538441. The reversal of 4538420 is 248354.

It can be written as a sum of positive squares in 4 ways, for example, as 2572816 + 1965604 = 1604^2 + 1402^2 .

It is a d-powerful number, because it can be written as 4 + 5⁵ + 3¹¹ + 8⁵ + 4¹¹ + 2¹⁷ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 4538420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327 + ... + 3806.

It is an arithmetic number, because the mean of its divisors is an integer number (407911).

Almost surely, 2^4538420 is an apocalyptic number.

It is an amenable number.

4538420 is an abundant number, since it is smaller than the sum of its proper divisors (5251444).

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

4538420 is a wasteful number, since it uses less digits than its factorization.

4538420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6179 (or 6177 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 4538420 is about 2130.3567776314. The cubic root of 4538420 is about 165.5648836054.

The spelling of 4538420 in words is "four million, five hundred thirty-eight thousand, four hundred twenty".