4421566 has 16 divisors (see below), whose sum is σ = 7286400. Its totient is φ = 2002968.

The previous prime is 4421539. The next prime is 4421567. The reversal of 4421566 is 6651244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (455400).

Almost surely, 2^4421566 is an apocalyptic number.

4421566 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4421566 is a deficient number, since it is larger than the sum of its proper divisors (2864834).

4421566 is a wasteful number, since it uses less digits than its factorization.

4421566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103.

The product of its digits is 5760, while the sum is 28.

The square root of 4421566 is about 2102.7520063003. The cubic root of 4421566 is about 164.1315373427.

The spelling of 4421566 in words is "four million, four hundred twenty-one thousand, five hundred sixty-six".