215340441424 has 40 divisors (see below), whose sum is σ = 435703541760. Its totient is φ = 102908158848.

The previous prime is 215340441397. The next prime is 215340441461. The reversal of 215340441424 is 424144043512.

It is a self number, because there is not a number n which added to its sum of digits gives 215340441424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241914 + ... + 699430.

It is an arithmetic number, because the mean of its divisors is an integer number (10892588544).

Almost surely, 2^215340441424 is an apocalyptic number.

It is an amenable number.

215340441424 is an abundant number, since it is smaller than the sum of its proper divisors (220363100336).

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

215340441424 is a wasteful number, since it uses less digits than its factorization.

215340441424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458827 (or 458821 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 215340441424 its reverse (424144043512), we get a palindrome (639484484936).

The spelling of 215340441424 in words is "two hundred fifteen billion, three hundred forty million, four hundred forty-one thousand, four hundred twenty-four".