68213248 has 60 divisors (see below), whose sum is σ = 145096182. Its totient is φ = 32030720.

The previous prime is 68213227. The next prime is 68213267. The reversal of 68213248 is 84231286.

It can be written as a sum of positive squares in 3 ways, for example, as 65804544 + 2408704 = 8112^2 + 1552^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147738 + ... + 148198.

Almost surely, 2^68213248 is an apocalyptic number.

68213248 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68213248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72548091).

68213248 is an abundant number, since it is smaller than the sum of its proper divisors (76882934).

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

68213248 is an equidigital number, since it uses as much as digits as its factorization.

68213248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 480 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 68213248 is about 8259.1311891748. The cubic root of 68213248 is about 408.5917339691.

It can be divided in two parts, 68 and 213248, that multiplied together give a square (14500864 = 3808²).

The spelling of 68213248 in words is "sixty-eight million, two hundred thirteen thousand, two hundred forty-eight".