4249666 has 8 divisors (see below), whose sum is σ = 6580224. Its totient is φ = 2056260.

The previous prime is 4249633. The next prime is 4249669. The reversal of 4249666 is 6669424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4249666² = 36119322223112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4249669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34210 + ... + 34333.

It is an arithmetic number, because the mean of its divisors is an integer number (822528).

Almost surely, 2^4249666 is an apocalyptic number.

4249666 is a deficient number, since it is larger than the sum of its proper divisors (2330558).

4249666 is a wasteful number, since it uses less digits than its factorization.

4249666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68576.

The product of its digits is 62208, while the sum is 37.

The square root of 4249666 is about 2061.4718043185. The cubic root of 4249666 is about 161.9763466965.

The spelling of 4249666 in words is "four million, two hundred forty-nine thousand, six hundred sixty-six".