3728528 has 20 divisors (see below), whose sum is σ = 7254000. Its totient is φ = 1856544.

The previous prime is 3728513. The next prime is 3728533. The reversal of 3728528 is 8258273.

It is a happy 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, 7223 + ... + 7721.

It is an arithmetic number, because the mean of its divisors is an integer number (362700).

Almost surely, 2^3728528 is an apocalyptic number.

It is an amenable number.

3728528 is a deficient number, since it is larger than the sum of its proper divisors (3525472).

3728528 is a wasteful number, since it uses less digits than its factorization.

3728528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 968 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 3728528 is about 1930.9396676230. The cubic root of 3728528 is about 155.0645308826.

The spelling of 3728528 in words is "three million, seven hundred twenty-eight thousand, five hundred twenty-eight".