64385480 has 32 divisors (see below), whose sum is σ = 146310840. Its totient is φ = 25497600.

The previous prime is 64385473. The next prime is 64385521. The reversal of 64385480 is 8458346.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64096036 + 289444 = 8006^2 + 538^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 3929 + ... + 12008.

Almost surely, 2^64385480 is an apocalyptic number.

It is an amenable number.

64385480 is an abundant number, since it is smaller than the sum of its proper divisors (81925360).

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

64385480 is a wasteful number, since it uses less digits than its factorization.

64385480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16049 (or 16045 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 64385480 is about 8024.0563308092. The cubic root of 64385480 is about 400.8014763499.

The spelling of 64385480 in words is "sixty-four million, three hundred eighty-five thousand, four hundred eighty".