68570384 has 40 divisors (see below), whose sum is σ = 145537560. Its totient is φ = 31152128.

The previous prime is 68570377. The next prime is 68570387. The reversal of 68570384 is 48307586.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5017600 + 63552784 = 2240^2 + 7972^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68570387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542 + ... + 12234.

It is an arithmetic number, because the mean of its divisors is an integer number (3638439).

Almost surely, 2^68570384 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 68570384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72768780).

68570384 is an abundant number, since it is smaller than the sum of its proper divisors (76967176).

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

68570384 is a wasteful number, since it uses less digits than its factorization.

68570384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8747 (or 8741 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 68570384 is about 8280.7236398759. The cubic root of 68570384 is about 409.3035648639.

The spelling of 68570384 in words is "sixty-eight million, five hundred seventy thousand, three hundred eighty-four".