64464345 has 48 divisors (see below), whose sum is σ = 125858304. Its totient is φ = 30240000.

The previous prime is 64464319. The next prime is 64464347. The reversal of 64464345 is 54346446.

64464345 is a `hidden beast` number, since 6 + 4 + 4 + 643 + 4 + 5 = 666.

It is not a de Polignac number, because 64464345 - 2⁷ = 64464217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64464347) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 13245 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (2622048).

Almost surely, 2^64464345 is an apocalyptic number.

It is an amenable number.

64464345 is a deficient number, since it is larger than the sum of its proper divisors (61393959).

64464345 is a wasteful number, since it uses less digits than its factorization.

64464345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254 (or 4251 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 64464345 is about 8028.9691119097. The cubic root of 64464345 is about 400.9650552153.

The spelling of 64464345 in words is "sixty-four million, four hundred sixty-four thousand, three hundred forty-five".