64805740 has 24 divisors (see below), whose sum is σ = 136568880. Its totient is φ = 25831488.

The previous prime is 64805737. The next prime is 64805761. The reversal of 64805740 is 4750846.

It is a junction number, because it is equal to n+sod(n) for n = 64805696 and 64805705.

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 7 ways as a sum of consecutive naturals, for example, 331 + ... + 11389.

It is an arithmetic number, because the mean of its divisors is an integer number (5690370).

Almost surely, 2^64805740 is an apocalyptic number.

It is an amenable number.

64805740 is an abundant number, since it is smaller than the sum of its proper divisors (71763140).

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

64805740 is a wasteful number, since it uses less digits than its factorization.

64805740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11361 (or 11359 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 64805740 is about 8050.2012397207. The cubic root of 64805740 is about 401.6716294063.

The spelling of 64805740 in words is "sixty-four million, eight hundred five thousand, seven hundred forty".