68464080 has 60 divisors (see below), whose sum is σ = 229927620. Its totient is φ = 18256896.

The previous prime is 68464079. The next prime is 68464111. The reversal of 68464080 is 8046486.

68464080 is a `hidden beast` number, since 6 + 8 + 4 + 640 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52012944 + 16451136 = 7212^2 + 4056^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 46825 + ... + 48264.

It is an arithmetic number, because the mean of its divisors is an integer number (3832127).

Almost surely, 2^68464080 is an apocalyptic number.

68464080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68464080 is an abundant number, since it is smaller than the sum of its proper divisors (161463540).

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

68464080 is a wasteful number, since it uses less digits than its factorization.

68464080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95108 (or 95099 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 68464080 is about 8274.3023875128. The cubic root of 68464080 is about 409.0919423543.

The spelling of 68464080 in words is "sixty-eight million, four hundred sixty-four thousand, eighty".