4421660 has 12 divisors (see below), whose sum is σ = 9285528. Its totient is φ = 1768656.

The previous prime is 4421653. The next prime is 4421671. The reversal of 4421660 is 661244.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110522 + ... + 110561.

It is an arithmetic number, because the mean of its divisors is an integer number (773794).

Almost surely, 2^4421660 is an apocalyptic number.

It is an amenable number.

4421660 is an abundant number, since it is smaller than the sum of its proper divisors (4863868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4421660 is a wasteful number, since it uses less digits than its factorization.

4421660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221092 (or 221090 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 4421660 is about 2102.7743578425. The cubic root of 4421660 is about 164.1327004491.

The spelling of 4421660 in words is "four million, four hundred twenty-one thousand, six hundred sixty".