4249918 has 12 divisors (see below), whose sum is σ = 6502248. Its totient is φ = 2082920.

The previous prime is 4249913. The next prime is 4249943. The reversal of 4249918 is 8199424.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4249913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24480 + ... + 24652.

It is an arithmetic number, because the mean of its divisors is an integer number (541854).

Almost surely, 2^4249918 is an apocalyptic number.

4249918 is a deficient number, since it is larger than the sum of its proper divisors (2252330).

4249918 is an equidigital number, since it uses as much as digits as its factorization.

4249918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 246 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 4249918 is about 2061.5329247916. The cubic root of 4249918 is about 161.9795482997.

The spelling of 4249918 in words is "four million, two hundred forty-nine thousand, nine hundred eighteen".