2516620434 has 16 divisors (see below), whose sum is σ = 5083076160. Its totient is φ = 830567600.

The previous prime is 2516620423. The next prime is 2516620439. The reversal of 2516620434 is 4340266152.

It is a junction number, because it is equal to n+sod(n) for n = 2516620395 and 2516620404.

It is not an unprimeable number, because it can be changed into a prime (2516620439) 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, 2075814 + ... + 2077025.

It is an arithmetic number, because the mean of its divisors is an integer number (317692260).

Almost surely, 2^2516620434 is an apocalyptic number.

2516620434 is an abundant number, since it is smaller than the sum of its proper divisors (2566455726).

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

2516620434 is a wasteful number, since it uses less digits than its factorization.

2516620434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152945.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2516620434 is about 50165.9290156178. The cubic root of 2516620434 is about 1360.2098209288.

Adding to 2516620434 its reverse (4340266152), we get a palindrome (6856886586).

The spelling of 2516620434 in words is "two billion, five hundred sixteen million, six hundred twenty thousand, four hundred thirty-four".