4221830 has 8 divisors (see below), whose sum is σ = 7599312. Its totient is φ = 1688728.

The previous prime is 4221829. The next prime is 4221851. The reversal of 4221830 is 381224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211082 + ... + 211101.

It is an arithmetic number, because the mean of its divisors is an integer number (949914).

Almost surely, 2^4221830 is an apocalyptic number.

4221830 is a deficient number, since it is larger than the sum of its proper divisors (3377482).

4221830 is a wasteful number, since it uses less digits than its factorization.

4221830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422190.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4221830 is about 2054.7092251703. The cubic root of 4221830 is about 161.6219146096.

Subtracting from 4221830 its reverse (381224), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 4221830 in words is "four million, two hundred twenty-one thousand, eight hundred thirty".