2016222540 has 48 divisors (see below), whose sum is σ = 5649557760. Its totient is φ = 537265600.

The previous prime is 2016222479. The next prime is 2016222587. The reversal of 2016222540 is 452226102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2016222540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75481 + ... + 98639.

It is an arithmetic number, because the mean of its divisors is an integer number (117699120).

Almost surely, 2^2016222540 is an apocalyptic number.

2016222540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2016222540 is an abundant number, since it is smaller than the sum of its proper divisors (3633335220).

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

2016222540 is a wasteful number, since it uses less digits than its factorization.

2016222540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24622 (or 24620 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2016222540 is about 44902.3667527671. The cubic root of 2016222540 is about 1263.3184007134.

Adding to 2016222540 its reverse (452226102), we get a palindrome (2468448642).

The spelling of 2016222540 in words is "two billion, sixteen million, two hundred twenty-two thousand, five hundred forty".