2520717408 has 240 divisors, whose sum is σ = 8145023040. Its totient is φ = 758419200.

The previous prime is 2520717391. The next prime is 2520717431. The reversal of 2520717408 is 8047170252.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6015823 + ... + 6016241.

It is an arithmetic number, because the mean of its divisors is an integer number (33937596).

Almost surely, 2^2520717408 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 2520717408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4072511520).

2520717408 is an abundant number, since it is smaller than the sum of its proper divisors (5624305632).

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

2520717408 is a wasteful number, since it uses less digits than its factorization.

2520717408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 2520717408 is about 50206.7466382756. The cubic root of 2520717408 is about 1360.9475461266.

The spelling of 2520717408 in words is "two billion, five hundred twenty million, seven hundred seventeen thousand, four hundred eight".