3828380 has 24 divisors (see below), whose sum is σ = 8162448. Its totient is φ = 1507968.

The previous prime is 3828379. The next prime is 3828389. The reversal of 3828380 is 838283.

3828380 = T₃₀₄ + T₃₀₅ + ... + T₃₇₀.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3828389) 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, 89 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (340102).

Almost surely, 2^3828380 is an apocalyptic number.

It is an amenable number.

3828380 is an abundant number, since it is smaller than the sum of its proper divisors (4334068).

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

3828380 is a wasteful number, since it uses less digits than its factorization.

3828380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933 (or 2931 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 3828380 is about 1956.6246446368. The cubic root of 3828380 is about 156.4365920185.

The spelling of 3828380 in words is "three million, eight hundred twenty-eight thousand, three hundred eighty".