4238865440 has 48 divisors (see below), whose sum is σ = 10044699840. Its totient is φ = 1690402560.

The previous prime is 4238865419. The next prime is 4238865461. The reversal of 4238865440 is 445688324.

It is an interprime number because it is at equal distance from previous prime (4238865419) and next prime (4238865461).

It is a junction number, because it is equal to n+sod(n) for n = 4238865391 and 4238865400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12941 + ... + 92979.

It is an arithmetic number, because the mean of its divisors is an integer number (209264580).

Almost surely, 2^4238865440 is an apocalyptic number.

4238865440 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 4238865440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5022349920).

4238865440 is an abundant number, since it is smaller than the sum of its proper divisors (5805834400).

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

4238865440 is a wasteful number, since it uses less digits than its factorization.

4238865440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80385 (or 80377 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 44.

The square root of 4238865440 is about 65106.5698681784. The cubic root of 4238865440 is about 1618.3900889039.

The spelling of 4238865440 in words is "four billion, two hundred thirty-eight million, eight hundred sixty-five thousand, four hundred forty".