216740003240 has 32 divisors (see below), whose sum is σ = 488791293480. Its totient is φ = 86495772672.

The previous prime is 216740003237. The next prime is 216740003287. The reversal of 216740003240 is 42300047612.

It can be written as a sum of positive squares in 4 ways, for example, as 85711930756 + 131028072484 = 292766^2 + 361978^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6239609 + ... + 6274248.

Almost surely, 2^216740003240 is an apocalyptic number.

216740003240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216740003240 is an abundant number, since it is smaller than the sum of its proper divisors (272051290240).

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

216740003240 is a wasteful number, since it uses less digits than its factorization.

216740003240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12514301 (or 12514297 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 216740003240 in words is "two hundred sixteen billion, seven hundred forty million, three thousand, two hundred forty".