4724428 has 12 divisors (see below), whose sum is σ = 8287272. Its totient is φ = 2356640.

The previous prime is 4724383. The next prime is 4724429. The reversal of 4724428 is 8244274.

It is a self number, because there is not a number n which added to its sum of digits gives 4724428.

It is not an unprimeable number, because it can be changed into a prime (4724429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951 + ... + 3217.

It is an arithmetic number, because the mean of its divisors is an integer number (690606).

Almost surely, 2^4724428 is an apocalyptic number.

It is an amenable number.

4724428 is a deficient number, since it is larger than the sum of its proper divisors (3562844).

4724428 is a wasteful number, since it uses less digits than its factorization.

4724428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792 (or 2790 counting only the distinct ones).

The product of its digits is 14336, while the sum is 31.

The square root of 4724428 is about 2173.5749354462. The cubic root of 4724428 is about 167.7965697154.

It can be divided in two parts, 472 and 4428, that added together give a square (4900 = 70²).

The spelling of 4724428 in words is "four million, seven hundred twenty-four thousand, four hundred twenty-eight".