68443100 has 72 divisors (see below), whose sum is σ = 165906048. Its totient is φ = 24292800.

The previous prime is 68443097. The next prime is 68443189. The reversal of 68443100 is 134486.

It is a super-2 number, since 2×68443100² = 9368915875220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68443100.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 46577 + ... + 48023.

Almost surely, 2^68443100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68443100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82953024).

68443100 is an abundant number, since it is smaller than the sum of its proper divisors (97462948).

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

68443100 is a wasteful number, since it uses less digits than its factorization.

68443100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 68443100 is about 8273.0345097793. The cubic root of 68443100 is about 409.0501509712.

Adding to 68443100 its reverse (134486), we get a palindrome (68577586).

The spelling of 68443100 in words is "sixty-eight million, four hundred forty-three thousand, one hundred".