8406128 has 20 divisors (see below), whose sum is σ = 16345680. Its totient is φ = 4187904.

The previous prime is 8406127. The next prime is 8406161. The reversal of 8406128 is 8216048.

It is a self number, because there is not a number n which added to its sum of digits gives 8406128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8406127) 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, 4613 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (817284).

Almost surely, 2^8406128 is an apocalyptic number.

It is an amenable number.

8406128 is a deficient number, since it is larger than the sum of its proper divisors (7939552).

8406128 is a wasteful number, since it uses less digits than its factorization.

8406128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 8406128 is about 2899.3323369355. The cubic root of 8406128 is about 203.3286917033.

The spelling of 8406128 in words is "eight million, four hundred six thousand, one hundred twenty-eight".