3728224 has 12 divisors (see below), whose sum is σ = 7340004. Its totient is φ = 1864096.

The previous prime is 3728203. The next prime is 3728243. The reversal of 3728224 is 4228273.

3728224 is nontrivially palindromic in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 3728192 and 3728201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58222 + ... + 58285.

It is an arithmetic number, because the mean of its divisors is an integer number (611667).

Almost surely, 2^3728224 is an apocalyptic number.

It is an amenable number.

3728224 is a deficient number, since it is larger than the sum of its proper divisors (3611780).

3728224 is a wasteful number, since it uses less digits than its factorization.

3728224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116517 (or 116509 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 3728224 is about 1930.8609478676. The cubic root of 3728224 is about 155.0603164492.

The spelling of 3728224 in words is "three million, seven hundred twenty-eight thousand, two hundred twenty-four".