68477344 has 48 divisors (see below), whose sum is σ = 146768328. Its totient is φ = 31260672.

The previous prime is 68477333. The next prime is 68477363. The reversal of 68477344 is 44377486.

It can be written as a sum of positive squares in 4 ways, for example, as 61779600 + 6697744 = 7860^2 + 2588^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68477344.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39504 + ... + 41200.

Almost surely, 2^68477344 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 68477344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73384164).

68477344 is an abundant number, since it is smaller than the sum of its proper divisors (78290984).

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

68477344 is a wasteful number, since it uses less digits than its factorization.

68477344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817 (or 1809 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

The square root of 68477344 is about 8275.1038664176. The cubic root of 68477344 is about 409.1183593462.

The spelling of 68477344 in words is "sixty-eight million, four hundred seventy-seven thousand, three hundred forty-four".