4491424 has 24 divisors (see below), whose sum is σ = 10106208. Its totient is φ = 1924800.

The previous prime is 4491419. The next prime is 4491439. The reversal of 4491424 is 4241944.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 4491392 and 4491401.

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, 9802 + ... + 10249.

It is an arithmetic number, because the mean of its divisors is an integer number (421092).

Almost surely, 2^4491424 is an apocalyptic number.

It is an amenable number.

4491424 is an abundant number, since it is smaller than the sum of its proper divisors (5614784).

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

4491424 is a wasteful number, since it uses less digits than its factorization.

4491424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20068 (or 20060 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 4491424 is about 2119.2979969792. The cubic root of 4491424 is about 164.9914167558.

The spelling of 4491424 in words is "four million, four hundred ninety-one thousand, four hundred twenty-four".