4381628 has 12 divisors (see below), whose sum is σ = 8071560. Its totient is φ = 2075472.

The previous prime is 4381607. The next prime is 4381667. The reversal of 4381628 is 8261834.

It is a junction number, because it is equal to n+sod(n) for n = 4381594 and 4381603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28751 + ... + 28902.

It is an arithmetic number, because the mean of its divisors is an integer number (672630).

Almost surely, 2^4381628 is an apocalyptic number.

It is an amenable number.

4381628 is a deficient number, since it is larger than the sum of its proper divisors (3689932).

4381628 is a wasteful number, since it uses less digits than its factorization.

4381628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57676 (or 57674 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 4381628 is about 2093.2338617555. The cubic root of 4381628 is about 163.6358667026.

The spelling of 4381628 in words is "four million, three hundred eighty-one thousand, six hundred twenty-eight".