4909920 has 96 divisors (see below), whose sum is σ = 15839712. Its totient is φ = 1277952.

The previous prime is 4909871. The next prime is 4909939. The reversal of 4909920 is 299094.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25344 + ... + 25536.

It is an arithmetic number, because the mean of its divisors is an integer number (164997).

Almost surely, 2^4909920 is an apocalyptic number.

4909920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4909920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7919856).

4909920 is an abundant number, since it is smaller than the sum of its proper divisors (10929792).

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

4909920 is a wasteful number, since it uses less digits than its factorization.

4909920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 4909920 is about 2215.8339287952. The cubic root of 4909920 is about 169.9644677757.

The spelling of 4909920 in words is "four million, nine hundred nine thousand, nine hundred twenty".