4281820 has 12 divisors (see below), whose sum is σ = 8991864. Its totient is φ = 1712720.

The previous prime is 4281803. The next prime is 4281833. The reversal of 4281820 is 281824.

It is an Ulam number.

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 3 ways as a sum of consecutive naturals, for example, 107026 + ... + 107065.

It is an arithmetic number, because the mean of its divisors is an integer number (749322).

Almost surely, 2^4281820 is an apocalyptic number.

It is an amenable number.

4281820 is an abundant number, since it is smaller than the sum of its proper divisors (4710044).

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

4281820 is a wasteful number, since it uses less digits than its factorization.

4281820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214100 (or 214098 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4281820 is about 2069.2559049088. The cubic root of 4281820 is about 162.3838380868.

The spelling of 4281820 in words is "four million, two hundred eighty-one thousand, eight hundred twenty".