3728308 has 24 divisors (see below), whose sum is σ = 6822144. Its totient is φ = 1780800.

The previous prime is 3728303. The next prime is 3728311. The reversal of 3728308 is 8038273.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 3728308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13128 + ... + 13408.

It is an arithmetic number, because the mean of its divisors is an integer number (284256).

Almost surely, 2^3728308 is an apocalyptic number.

It is an amenable number.

3728308 is a deficient number, since it is larger than the sum of its proper divisors (3093836).

3728308 is a wasteful number, since it uses less digits than its factorization.

3728308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 3728308 is about 1930.8826996998. The cubic root of 3728308 is about 155.0614809866.

The spelling of 3728308 in words is "three million, seven hundred twenty-eight thousand, three hundred eight".