4071249 has 32 divisors (see below), whose sum is σ = 7427840. Its totient is φ = 2146176.

The previous prime is 4071241. The next prime is 4071257. The reversal of 4071249 is 9421704.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4071241) and next prime (4071257).

It is not a de Polignac number, because 4071249 - 2³ = 4071241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

4071249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4071241) 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 31 ways as a sum of consecutive naturals, for example, 1629 + ... + 3285.

It is an arithmetic number, because the mean of its divisors is an integer number (232120).

Almost surely, 2^4071249 is an apocalyptic number.

It is an amenable number.

4071249 is a deficient number, since it is larger than the sum of its proper divisors (3356591).

4071249 is a wasteful number, since it uses less digits than its factorization.

4071249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 4071249 is about 2017.7336295953. The cubic root of 4071249 is about 159.6770700191.

It can be divided in two parts, 40 and 71249, that added together give a square (71289 = 267²).

The spelling of 4071249 in words is "four million, seventy-one thousand, two hundred forty-nine".