4257172 has 24 divisors (see below), whose sum is σ = 7783776. Its totient is φ = 2035488.

The previous prime is 4257163. The next prime is 4257193. The reversal of 4257172 is 2717524.

It is a self number, because there is not a number n which added to its sum of digits gives 4257172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8883 + ... + 9349.

It is an arithmetic number, because the mean of its divisors is an integer number (324324).

Almost surely, 2^4257172 is an apocalyptic number.

It is an amenable number.

4257172 is a deficient number, since it is larger than the sum of its proper divisors (3526604).

4257172 is a wasteful number, since it uses less digits than its factorization.

4257172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 565 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 4257172 is about 2063.2915450803. The cubic root of 4257172 is about 162.0716545284.

The spelling of 4257172 in words is "four million, two hundred fifty-seven thousand, one hundred seventy-two".