3782128 has 20 divisors (see below), whose sum is σ = 8374960. Its totient is φ = 1620864.

The previous prime is 3782123. The next prime is 3782153. The reversal of 3782128 is 8212873.

It is a self number, because there is not a number n which added to its sum of digits gives 3782128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3782123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16773 + ... + 16996.

It is an arithmetic number, because the mean of its divisors is an integer number (418748).

Almost surely, 2^3782128 is an apocalyptic number.

It is an amenable number.

3782128 is an abundant number, since it is smaller than the sum of its proper divisors (4592832).

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

3782128 is a wasteful number, since it uses less digits than its factorization.

3782128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33784 (or 33778 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 3782128 is about 1944.7693950698. The cubic root of 3782128 is about 155.8040493904.

The spelling of 3782128 in words is "three million, seven hundred eighty-two thousand, one hundred twenty-eight".