3850728 has 32 divisors (see below), whose sum is σ = 11002560. Its totient is φ = 1100160.

The previous prime is 3850723. The next prime is 3850811. The reversal of 3850728 is 8270583.

3850728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3850728² = 29656212259968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3850723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11293 + ... + 11628.

It is an arithmetic number, because the mean of its divisors is an integer number (343830).

Almost surely, 2^3850728 is an apocalyptic number.

It is an amenable number.

3850728 is an abundant number, since it is smaller than the sum of its proper divisors (7151832).

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

3850728 is a wasteful number, since it uses less digits than its factorization.

3850728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22937 (or 22933 counting only the distinct ones).

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

The square root of 3850728 is about 1962.3271898437. The cubic root of 3850728 is about 156.7403988737.

The spelling of 3850728 in words is "three million, eight hundred fifty thousand, seven hundred twenty-eight".