4491776 has 40 divisors (see below), whose sum is σ = 9297024. Its totient is φ = 2165760.

The previous prime is 4491769. The next prime is 4491787. The reversal of 4491776 is 6771944.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15731 + ... + 16013.

Almost surely, 2^4491776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4491776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4648512).

4491776 is an abundant number, since it is smaller than the sum of its proper divisors (4805248).

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

4491776 is an equidigital number, since it uses as much as digits as its factorization.

4491776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 316 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 4491776 is about 2119.3810417195. The cubic root of 4491776 is about 164.9957268560.

The spelling of 4491776 in words is "four million, four hundred ninety-one thousand, seven hundred seventy-six".