65004080 has 40 divisors (see below), whose sum is σ = 156351600. Its totient is φ = 25104128.

The previous prime is 65004077. The next prime is 65004113. The reversal of 65004080 is 8040056.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11690 + ... + 16329.

It is an arithmetic number, because the mean of its divisors is an integer number (3908790).

Almost surely, 2^65004080 is an apocalyptic number.

It is an amenable number.

65004080 is an abundant number, since it is smaller than the sum of its proper divisors (91347520).

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

65004080 is a wasteful number, since it uses less digits than its factorization.

65004080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061 (or 28055 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 65004080 is about 8062.5107751866. The cubic root of 65004080 is about 402.0809882783.

The spelling of 65004080 in words is "sixty-five million, four thousand, eighty".