3924128 has 24 divisors (see below), whose sum is σ = 8320788. Its totient is φ = 1810944.

The previous prime is 3924121. The next prime is 3924139. The reversal of 3924128 is 8214293.

It can be written as a sum of positive squares in 2 ways, for example, as 3888784 + 35344 = 1972^2 + 188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3924128.

It is not an unprimeable number, because it can be changed into a prime (3924121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4301 + ... + 5132.

Almost surely, 2^3924128 is an apocalyptic number.

It is an amenable number.

3924128 is an abundant number, since it is smaller than the sum of its proper divisors (4396660).

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

3924128 is a wasteful number, since it uses less digits than its factorization.

3924128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9456 (or 9448 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 3924128 is about 1980.9411904446. The cubic root of 3924128 is about 157.7300308842.

The spelling of 3924128 in words is "three million, nine hundred twenty-four thousand, one hundred twenty-eight".