64005380 has 24 divisors (see below), whose sum is σ = 134628480. Its totient is φ = 25560800.

The previous prime is 64005379. The next prime is 64005419. The reversal of 64005380 is 8350046.

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, 12155 + ... + 16605.

It is an arithmetic number, because the mean of its divisors is an integer number (5609520).

Almost surely, 2^64005380 is an apocalyptic number.

It is an amenable number.

64005380 is an abundant number, since it is smaller than the sum of its proper divisors (70623100).

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

64005380 is a wasteful number, since it uses less digits than its factorization.

64005380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179 (or 5177 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 64005380 is about 8000.3362429338. The cubic root of 64005380 is about 400.0112080193.

The spelling of 64005380 in words is "sixty-four million, five thousand, three hundred eighty".