1068421216 has 12 divisors (see below), whose sum is σ = 2103454332. Its totient is φ = 534210592.

The previous prime is 1068421183. The next prime is 1068421229. The reversal of 1068421216 is 6121248601.

It is a super-2 number, since 2×1068421216² = 2283047789597837312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16694050 + ... + 16694113.

It is an arithmetic number, because the mean of its divisors is an integer number (175287861).

Almost surely, 2^1068421216 is an apocalyptic number.

1068421216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1068421216 is a deficient number, since it is larger than the sum of its proper divisors (1035033116).

1068421216 is an equidigital number, since it uses as much as digits as its factorization.

1068421216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33388173 (or 33388165 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1068421216 is about 32686.7131415809. The cubic root of 1068421216 is about 1022.3058228483.

Adding to 1068421216 its reverse (6121248601), we get a palindrome (7189669817).

The spelling of 1068421216 in words is "one billion, sixty-eight million, four hundred twenty-one thousand, two hundred sixteen".