68204064 has 24 divisors (see below), whose sum is σ = 179035920. Its totient is φ = 22734656.

The previous prime is 68204029. The next prime is 68204069. The reversal of 68204064 is 46040286.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×68204064² = 9303588692232192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68204069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355134 + ... + 355325.

It is an arithmetic number, because the mean of its divisors is an integer number (7459830).

Almost surely, 2^68204064 is an apocalyptic number.

It is an amenable number.

68204064 is an abundant number, since it is smaller than the sum of its proper divisors (110831856).

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

68204064 is a wasteful number, since it uses less digits than its factorization.

68204064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710472 (or 710464 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 68204064 is about 8258.5751797753. The cubic root of 68204064 is about 408.5733960118.

The spelling of 68204064 in words is "sixty-eight million, two hundred four thousand, sixty-four".