2485039840 has 48 divisors (see below), whose sum is σ = 5898810960. Its totient is φ = 989291520.

The previous prime is 2485039829. The next prime is 2485039847. The reversal of 2485039840 is 489305842.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2485039847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3045 + ... + 70564.

It is an arithmetic number, because the mean of its divisors is an integer number (122891895).

Almost surely, 2^2485039840 is an apocalyptic number.

2485039840 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 2485039840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2949405480).

2485039840 is an abundant number, since it is smaller than the sum of its proper divisors (3413771120).

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

2485039840 is a wasteful number, since it uses less digits than its factorization.

2485039840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73835 (or 73827 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 2485039840 is about 49850.1739214619. The cubic root of 2485039840 is about 1354.4961821142.

The spelling of 2485039840 in words is "two billion, four hundred eighty-five million, thirty-nine thousand, eight hundred forty".