64468068 has 48 divisors (see below), whose sum is σ = 172335744. Its totient is φ = 18374400.

The previous prime is 64468049. The next prime is 64468069. The reversal of 64468068 is 86086446.

It is a super-2 number, since 2×64468068² = 8312263583305248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (64468069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49846 + ... + 51122.

It is an arithmetic number, because the mean of its divisors is an integer number (3590328).

Almost surely, 2^64468068 is an apocalyptic number.

It is an amenable number.

64468068 is an abundant number, since it is smaller than the sum of its proper divisors (107867676).

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

64468068 is a wasteful number, since it uses less digits than its factorization.

64468068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 1890 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 64468068 is about 8029.2009565087. The cubic root of 64468068 is about 400.9727740256.

The spelling of 64468068 in words is "sixty-four million, four hundred sixty-eight thousand, sixty-eight".