4307840 has 64 divisors (see below), whose sum is σ = 10575360. Its totient is φ = 1677312.

The previous prime is 4307833. The next prime is 4307857. The reversal of 4307840 is 487034.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33857 + ... + 33983.

It is an arithmetic number, because the mean of its divisors is an integer number (165240).

Almost surely, 2^4307840 is an apocalyptic number.

4307840 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 4307840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5287680).

4307840 is an abundant number, since it is smaller than the sum of its proper divisors (6267520).

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

4307840 is a wasteful number, since it uses less digits than its factorization.

4307840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 4307840 is about 2075.5336663133. The cubic root of 4307840 is about 162.7121017338.

The spelling of 4307840 in words is "four million, three hundred seven thousand, eight hundred forty".