2520928540 has 48 divisors (see below), whose sum is σ = 5724038880. Its totient is φ = 927072000.

The previous prime is 2520928523. The next prime is 2520928549. The reversal of 2520928540 is 458290252.

It is a self number, because there is not a number n which added to its sum of digits gives 2520928540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520928549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45946 + ... + 84574.

It is an arithmetic number, because the mean of its divisors is an integer number (119250810).

Almost surely, 2^2520928540 is an apocalyptic number.

2520928540 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 2520928540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2862019440).

2520928540 is an abundant number, since it is smaller than the sum of its proper divisors (3203110340).

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

2520928540 is a wasteful number, since it uses less digits than its factorization.

2520928540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38902 (or 38900 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 2520928540 is about 50208.8492200329. The cubic root of 2520928540 is about 1360.9855421291.

The spelling of 2520928540 in words is "two billion, five hundred twenty million, nine hundred twenty-eight thousand, five hundred forty".