4128172 has 12 divisors (see below), whose sum is σ = 7392616. Its totient is φ = 2016000.

The previous prime is 4128139. The next prime is 4128181. The reversal of 4128172 is 2718214.

It is a happy number.

It is a super-3 number, since 3×4128172³ (a number of 21 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11829 + ... + 12172.

Almost surely, 2^4128172 is an apocalyptic number.

It is an amenable number.

4128172 is a deficient number, since it is larger than the sum of its proper divisors (3264444).

4128172 is a wasteful number, since it uses less digits than its factorization.

4128172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24048 (or 24046 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 4128172 is about 2031.7903435148. The cubic root of 4128172 is about 160.4178142456.

The spelling of 4128172 in words is "four million, one hundred twenty-eight thousand, one hundred seventy-two".