1216410524 has 12 divisors (see below), whose sum is σ = 2432821104. Its totient is φ = 521318784.

The previous prime is 1216410487. The next prime is 1216410529. The reversal of 1216410524 is 4250146121.

1216410524 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1216410493 and 1216410502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216410529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21721589 + ... + 21721644.

It is an arithmetic number, because the mean of its divisors is an integer number (202735092).

Almost surely, 2^1216410524 is an apocalyptic number.

1216410524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1216410524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1216410524 is a wasteful number, since it uses less digits than its factorization.

1216410524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43443244 (or 43443242 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1216410524 is about 34877.0773431490. The cubic root of 1216410524 is about 1067.4807603295.

Adding to 1216410524 its reverse (4250146121), we get a palindrome (5466556645).

The spelling of 1216410524 in words is "one billion, two hundred sixteen million, four hundred ten thousand, five hundred twenty-four".