4228172 has 24 divisors (see below), whose sum is σ = 8438976. Its totient is φ = 1836288.

The previous prime is 4228157. The next prime is 4228177. The reversal of 4228172 is 2718224.

It is a super-3 number, since 3×4228172³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a d-powerful number, because it can be written as 4 + 2¹⁰ + 2¹⁵ + 8² + 1 + 7 + 2²² .

It is not an unprimeable number, because it can be changed into a prime (4228177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1508 + ... + 3275.

It is an arithmetic number, because the mean of its divisors is an integer number (351624).

Almost surely, 2^4228172 is an apocalyptic number.

It is an amenable number.

4228172 is a deficient number, since it is larger than the sum of its proper divisors (4210804).

4228172 is a wasteful number, since it uses less digits than its factorization.

4228172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817 (or 4815 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 4228172 is about 2056.2519300903. The cubic root of 4228172 is about 161.7028031784.

The spelling of 4228172 in words is "four million, two hundred twenty-eight thousand, one hundred seventy-two".