4251668 has 24 divisors (see below), whose sum is σ = 8020320. Its totient is φ = 1965600.

The previous prime is 4251647. The next prime is 4251691. The reversal of 4251668 is 8661524.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618 + ... + 3918.

It is an arithmetic number, because the mean of its divisors is an integer number (334180).

Almost surely, 2^4251668 is an apocalyptic number.

It is an amenable number.

4251668 is a deficient number, since it is larger than the sum of its proper divisors (3768652).

4251668 is a wasteful number, since it uses less digits than its factorization.

4251668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1365 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 4251668 is about 2061.9573225457. The cubic root of 4251668 is about 162.0017781647.

The spelling of 4251668 in words is "four million, two hundred fifty-one thousand, six hundred sixty-eight".