4221930 has 16 divisors (see below), whose sum is σ = 10132704. Its totient is φ = 1125840.

The previous prime is 4221923. The next prime is 4221941. The reversal of 4221930 is 391224.

It is a junction number, because it is equal to n+sod(n) for n = 4221897 and 4221906.

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 7 ways as a sum of consecutive naturals, for example, 70336 + ... + 70395.

It is an arithmetic number, because the mean of its divisors is an integer number (633294).

Almost surely, 2^4221930 is an apocalyptic number.

4221930 is an abundant number, since it is smaller than the sum of its proper divisors (5910774).

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

4221930 is a wasteful number, since it uses less digits than its factorization.

4221930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140741.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4221930 is about 2054.7335593697. The cubic root of 4221930 is about 161.6231906806.

It can be divided in two parts, 4221 and 930, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 4221930 in words is "four million, two hundred twenty-one thousand, nine hundred thirty".