4509912 has 48 divisors (see below), whose sum is σ = 12400920. Its totient is φ = 1365760.

The previous prime is 4509907. The next prime is 4509919. The reversal of 4509912 is 2199054.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4509912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4509919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2128 + ... + 3680.

Almost surely, 2^4509912 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 4509912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6200460).

4509912 is an abundant number, since it is smaller than the sum of its proper divisors (7891008).

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

4509912 is a wasteful number, since it uses less digits than its factorization.

4509912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 4509912 is about 2123.6553392677. The cubic root of 4509912 is about 165.2174909711.

The spelling of 4509912 in words is "four million, five hundred nine thousand, nine hundred twelve".