4851840 has 192 divisors, whose sum is σ = 18653760. Its totient is φ = 1050624.

The previous prime is 4851839. The next prime is 4851877. The reversal of 4851840 is 481584.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4851798 and 4851807.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 255351 + ... + 255369.

It is an arithmetic number, because the mean of its divisors is an integer number (97155).

Almost surely, 2^4851840 is an apocalyptic number.

4851840 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 4851840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9326880).

4851840 is an abundant number, since it is smaller than the sum of its proper divisors (13801920).

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

4851840 is a wasteful number, since it uses less digits than its factorization.

4851840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 4851840 is about 2202.6892654208. The cubic root of 4851840 is about 169.2916314253.

The spelling of 4851840 in words is "four million, eight hundred fifty-one thousand, eight hundred forty".