68018250 has 64 divisors (see below), whose sum is σ = 171849600. Its totient is φ = 17916800.

The previous prime is 68018231. The next prime is 68018257. The reversal of 68018250 is 5281086.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68018257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66241 + ... + 67259.

It is an arithmetic number, because the mean of its divisors is an integer number (2685150).

Almost surely, 2^68018250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68018250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85924800).

68018250 is an abundant number, since it is smaller than the sum of its proper divisors (103831350).

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

68018250 is a wasteful number, since it uses less digits than its factorization.

68018250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 68018250 is about 8247.3177457886. The cubic root of 68018250 is about 408.2020217323.

It can be divided in two parts, 6801 and 8250, that added together give a palindrome (15051).

The spelling of 68018250 in words is "sixty-eight million, eighteen thousand, two hundred fifty".