2039165440 has 160 divisors (see below), whose sum is σ = 5345657856. Its totient is φ = 741457920.

The previous prime is 2039165413. The next prime is 2039165473. The reversal of 2039165440 is 445619302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 2039165396 and 2039165405.

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, 2362449 + ... + 2363311.

Almost surely, 2^2039165440 is an apocalyptic number.

2039165440 is a gapful number since it is divisible by the number (20) 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 2039165440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2672828928).

2039165440 is an abundant number, since it is smaller than the sum of its proper divisors (3306492416).

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

2039165440 is an equidigital number, since it uses as much as digits as its factorization.

2039165440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2039165440 is about 45157.1194829785. The cubic root of 2039165440 is about 1268.0921692266.

The spelling of 2039165440 in words is "two billion, thirty-nine million, one hundred sixty-five thousand, four hundred forty".