64805480 has 32 divisors (see below), whose sum is σ = 148919040. Its totient is φ = 25369920.

The previous prime is 64805471. The next prime is 64805509. The reversal of 64805480 is 8450846.

64805480 = T₃₈₉ + T₃₉₀ + ... + T₇₆₄.

It is a self number, because there is not a number n which added to its sum of digits gives 64805480.

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, 15356 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (4653720).

Almost surely, 2^64805480 is an apocalyptic number.

It is an amenable number.

64805480 is an abundant number, since it is smaller than the sum of its proper divisors (84113560).

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

64805480 is a wasteful number, since it uses less digits than its factorization.

64805480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34529 (or 34525 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 64805480 is about 8050.1850910398. The cubic root of 64805480 is about 401.6710922381.

The spelling of 64805480 in words is "sixty-four million, eight hundred five thousand, four hundred eighty".