4180249 has 4 divisors (see below), whose sum is σ = 4426164. Its totient is φ = 3934336.

The previous prime is 4180243. The next prime is 4180271. The reversal of 4180249 is 9420814.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3115225 + 1065024 = 1765^2 + 1032^2 .

It is a cyclic number.

It is not a de Polignac number, because 4180249 - 2⁵ = 4180217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4180243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122932 + ... + 122965.

It is an arithmetic number, because the mean of its divisors is an integer number (1106541).

Almost surely, 2^4180249 is an apocalyptic number.

It is an amenable number.

4180249 is a deficient number, since it is larger than the sum of its proper divisors (245915).

4180249 is a wasteful number, since it uses less digits than its factorization.

4180249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245914.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4180249 is about 2044.5657240598. The cubic root of 4180249 is about 161.0895557721.

The spelling of 4180249 in words is "four million, one hundred eighty thousand, two hundred forty-nine".