4128406 has 8 divisors (see below), whose sum is σ = 6285240. Its totient is φ = 2033328.

The previous prime is 4128401. The next prime is 4128409. The reversal of 4128406 is 6048214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4128406² = 34087472201672, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128401) 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, 15271 + ... + 15538.

It is an arithmetic number, because the mean of its divisors is an integer number (785655).

Almost surely, 2^4128406 is an apocalyptic number.

4128406 is a deficient number, since it is larger than the sum of its proper divisors (2156834).

4128406 is a wasteful number, since it uses less digits than its factorization.

4128406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30878.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4128406 is about 2031.8479273804. The cubic root of 4128406 is about 160.4208452126.

The spelling of 4128406 in words is "four million, one hundred twenty-eight thousand, four hundred six".