2522216340 has 384 divisors, whose sum is σ = 9519390720. Its totient is φ = 541956096.

The previous prime is 2522216329. The next prime is 2522216377. The reversal of 2522216340 is 436122252.

It is a happy number.

2522216340 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 21 + 634 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5824764 + ... + 5825196.

It is an arithmetic number, because the mean of its divisors is an integer number (24790080).

Almost surely, 2^2522216340 is an apocalyptic number.

2522216340 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 2522216340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4759695360).

2522216340 is an abundant number, since it is smaller than the sum of its proper divisors (6997174380).

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

2522216340 is a wasteful number, since it uses less digits than its factorization.

2522216340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2522216340 is about 50221.6720151769. The cubic root of 2522216340 is about 1361.2172528910.

Adding to 2522216340 its reverse (436122252), we get a palindrome (2958338592).

The spelling of 2522216340 in words is "two billion, five hundred twenty-two million, two hundred sixteen thousand, three hundred forty".