4320870 has 32 divisors (see below), whose sum is σ = 10517472. Its totient is φ = 1135872.

The previous prime is 4320863. The next prime is 4320893. The reversal of 4320870 is 780234.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320870.

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, 1204 + ... + 3176.

It is an arithmetic number, because the mean of its divisors is an integer number (328671).

Almost surely, 2^4320870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4320870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5258736).

4320870 is an abundant number, since it is smaller than the sum of its proper divisors (6196602).

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

4320870 is a wasteful number, since it uses less digits than its factorization.

4320870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 4320870 is about 2078.6702480192. The cubic root of 4320870 is about 162.8759893328.

The spelling of 4320870 in words is "four million, three hundred twenty thousand, eight hundred seventy".