3894128 has 30 divisors (see below), whose sum is σ = 8778456. Its totient is φ = 1668576.

The previous prime is 3894119. The next prime is 3894131. The reversal of 3894128 is 8214983.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1700 + ... + 3267.

Almost surely, 2^3894128 is an apocalyptic number.

It is an amenable number.

3894128 is an abundant number, since it is smaller than the sum of its proper divisors (4884328).

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

3894128 is a wasteful number, since it uses less digits than its factorization.

3894128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989 (or 4976 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 3894128 is about 1973.3545043909. The cubic root of 3894128 is about 157.3270529588.

The spelling of 3894128 in words is "three million, eight hundred ninety-four thousand, one hundred twenty-eight".