4391640260 has 96 divisors (see below), whose sum is σ = 11461782528. Its totient is φ = 1378805760.

The previous prime is 4391640251. The next prime is 4391640299. The reversal of 4391640260 is 620461934.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 4391640260.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63125 + ... + 112995.

It is an arithmetic number, because the mean of its divisors is an integer number (119393568).

Almost surely, 2^4391640260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4391640260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5730891264).

4391640260 is an abundant number, since it is smaller than the sum of its proper divisors (7070142268).

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

4391640260 is a wasteful number, since it uses less digits than its factorization.

4391640260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49941 (or 49939 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 4391640260 is about 66269.4519367710. The cubic root of 4391640260 is about 1637.6041086034.

The spelling of 4391640260 in words is "four billion, three hundred ninety-one million, six hundred forty thousand, two hundred sixty".