2520406416 has 40 divisors (see below), whose sum is σ = 7102965024. Its totient is φ = 763759360.

The previous prime is 2520406409. The next prime is 2520406439. The reversal of 2520406416 is 6146040252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2386221 + ... + 2387276.

Almost surely, 2^2520406416 is an apocalyptic number.

It is an amenable number.

2520406416 is an abundant number, since it is smaller than the sum of its proper divisors (4582558608).

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

2520406416 is a wasteful number, since it uses less digits than its factorization.

2520406416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773519 (or 4773513 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2520406416 is about 50203.6494291003. The cubic root of 2520406416 is about 1360.8915751287.

Adding to 2520406416 its reverse (6146040252), we get a palindrome (8666446668).

The spelling of 2520406416 in words is "two billion, five hundred twenty million, four hundred six thousand, four hundred sixteen".