68444244 has 96 divisors (see below), whose sum is σ = 205027200. Its totient is φ = 19514880.

The previous prime is 68444231. The next prime is 68444269. The reversal of 68444244 is 44244486.

It is a super-2 number, since 2×68444244² = 9369229073463072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 68444199 and 68444208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18502 + ... + 21890.

It is an arithmetic number, because the mean of its divisors is an integer number (2135700).

Almost surely, 2^68444244 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 68444244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102513600).

68444244 is an abundant number, since it is smaller than the sum of its proper divisors (136582956).

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

68444244 is a wasteful number, since it uses less digits than its factorization.

68444244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430 (or 3422 counting only the distinct ones).

The product of its digits is 98304, while the sum is 36.

The square root of 68444244 is about 8273.1036497798. The cubic root of 68444244 is about 409.0524299969.

It can be divided in two parts, 684442 and 44, that added together give a palindrome (684486).

The spelling of 68444244 in words is "sixty-eight million, four hundred forty-four thousand, two hundred forty-four".