4851440 has 80 divisors (see below), whose sum is σ = 12722400. Its totient is φ = 1704960.

The previous prime is 4851397. The next prime is 4851463. The reversal of 4851440 is 441584.

It is a tau number, because it is divible by the number of its divisors (80).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32486 + ... + 32634.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

Almost surely, 2^4851440 is an apocalyptic number.

4851440 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 4851440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6361200).

4851440 is an abundant number, since it is smaller than the sum of its proper divisors (7870960).

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

4851440 is a wasteful number, since it uses less digits than its factorization.

4851440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 4851440 is about 2202.5984654494. The cubic root of 4851440 is about 169.2869789969.

The spelling of 4851440 in words is "four million, eight hundred fifty-one thousand, four hundred forty".