68349204 has 96 divisors (see below), whose sum is σ = 220953600. Its totient is φ = 17750880.

The previous prime is 68349187. The next prime is 68349209. The reversal of 68349204 is 40294386.

It is a happy number.

It is a super-2 number, since 2×68349204² = 9343227374867232, 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 (68349209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4207 + ... + 12425.

It is an arithmetic number, because the mean of its divisors is an integer number (2301600).

Almost surely, 2^68349204 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 68349204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110476800).

68349204 is an abundant number, since it is smaller than the sum of its proper divisors (152604396).

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

68349204 is a wasteful number, since it uses less digits than its factorization.

68349204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8250 (or 8242 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68349204 is about 8267.3577399312. The cubic root of 68349204 is about 408.8630089012.

The spelling of 68349204 in words is "sixty-eight million, three hundred forty-nine thousand, two hundred four".