68235804 has 192 divisors, whose sum is σ = 223534080. Its totient is φ = 17521920.

The previous prime is 68235799. The next prime is 68235809. The reversal of 68235804 is 40853286.

It is an interprime number because it is at equal distance from previous prime (68235799) and next prime (68235809).

It is a super-2 number, since 2×68235804² = 9312249895052832, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68235809) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 520819 + ... + 520949.

It is an arithmetic number, because the mean of its divisors is an integer number (1164240).

Almost surely, 2^68235804 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 68235804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111767040).

68235804 is an abundant number, since it is smaller than the sum of its proper divisors (155298276).

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

68235804 is a wasteful number, since it uses less digits than its factorization.

68235804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 68235804 is about 8260.4965952417. The cubic root of 68235804 is about 408.6367651997.

The spelling of 68235804 in words is "sixty-eight million, two hundred thirty-five thousand, eight hundred four".