65386480 has 20 divisors (see below), whose sum is σ = 152023752. Its totient is φ = 26154560.

The previous prime is 65386469. The next prime is 65386501. The reversal of 65386480 is 8468356.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408586 + ... + 408745.

Almost surely, 2^65386480 is an apocalyptic number.

It is an amenable number.

65386480 is an abundant number, since it is smaller than the sum of its proper divisors (86637272).

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

65386480 is a wasteful number, since it uses less digits than its factorization.

65386480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817344 (or 817338 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 65386480 is about 8086.1906977266. The cubic root of 65386480 is about 402.8678888921.

The spelling of 65386480 in words is "sixty-five million, three hundred eighty-six thousand, four hundred eighty".