3728508 has 72 divisors (see below), whose sum is σ = 10744272. Its totient is φ = 999936.

The previous prime is 3728489. The next prime is 3728509. The reversal of 3728508 is 8058273.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9810 + ... + 10182.

It is an arithmetic number, because the mean of its divisors is an integer number (149226).

Almost surely, 2^3728508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3728508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5372136).

3728508 is an abundant number, since it is smaller than the sum of its proper divisors (7015764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3728508 is a wasteful number, since it uses less digits than its factorization.

3728508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 3728508 is about 1930.9344887903. The cubic root of 3728508 is about 155.0642536243.

The spelling of 3728508 in words is "three million, seven hundred twenty-eight thousand, five hundred eight".