68478304 has 12 divisors (see below), whose sum is σ = 134816724. Its totient is φ = 34239136.

The previous prime is 68478301. The next prime is 68478313. The reversal of 68478304 is 40387486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68478301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069942 + ... + 1070005.

It is an arithmetic number, because the mean of its divisors is an integer number (11234727).

Almost surely, 2^68478304 is an apocalyptic number.

It is an amenable number.

68478304 is a deficient number, since it is larger than the sum of its proper divisors (66338420).

68478304 is a wasteful number, since it uses less digits than its factorization.

68478304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139957 (or 2139949 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 68478304 is about 8275.1618715286. The cubic root of 68478304 is about 409.1202711795.

It can be divided in two parts, 6847 and 8304, that added together give a palindrome (15151).

The spelling of 68478304 in words is "sixty-eight million, four hundred seventy-eight thousand, three hundred four".