68051844 has 144 divisors (see below), whose sum is σ = 211236480. Its totient is φ = 18040320.

The previous prime is 68051827. The next prime is 68051857. The reversal of 68051844 is 44815086.

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

It is a junction number, because it is equal to n+sod(n) for n = 68051799 and 68051808.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 291952 + ... + 292184.

It is an arithmetic number, because the mean of its divisors is an integer number (1466920).

Almost surely, 2^68051844 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 68051844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105618240).

68051844 is an abundant number, since it is smaller than the sum of its proper divisors (143184636).

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

68051844 is a wasteful number, since it uses less digits than its factorization.

68051844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 68051844 is about 8249.3541565386. The cubic root of 68051844 is about 408.2692139035.

It can be divided in two parts, 6805 and 1844, that added together give a square (8649 = 93²).

The spelling of 68051844 in words is "sixty-eight million, fifty-one thousand, eight hundred forty-four".