4428668 has 6 divisors (see below), whose sum is σ = 7750176. Its totient is φ = 2214332.

The previous prime is 4428643. The next prime is 4428689. The reversal of 4428668 is 8668244.

It is a happy number.

It is a super-2 number, since 2×4428668² = 39226200508448, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 553580 + ... + 553587.

It is an arithmetic number, because the mean of its divisors is an integer number (1291696).

Almost surely, 2^4428668 is an apocalyptic number.

It is an amenable number.

4428668 is a deficient number, since it is larger than the sum of its proper divisors (3321508).

4428668 is a wasteful number, since it uses less digits than its factorization.

4428668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107171 (or 1107169 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 4428668 is about 2104.4400680466. The cubic root of 4428668 is about 164.2193673582.

The spelling of 4428668 in words is "four million, four hundred twenty-eight thousand, six hundred sixty-eight".