4257200172 has 12 divisors (see below), whose sum is σ = 9933467096. Its totient is φ = 1419066720.

The previous prime is 4257200113. The next prime is 4257200177. The reversal of 4257200172 is 2710027524.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (4257200177) 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, 177383329 + ... + 177383352.

Almost surely, 2^4257200172 is an apocalyptic number.

It is an amenable number.

4257200172 is an abundant number, since it is smaller than the sum of its proper divisors (5676266924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4257200172 is a wasteful number, since it uses less digits than its factorization.

4257200172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354766688 (or 354766686 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 4257200172 is about 65247.2234811567. The cubic root of 4257200172 is about 1620.7201203272.

Adding to 4257200172 its reverse (2710027524), we get a palindrome (6967227696).

The spelling of 4257200172 in words is "four billion, two hundred fifty-seven million, two hundred thousand, one hundred seventy-two".