64449348 has 12 divisors (see below), whose sum is σ = 150381840. Its totient is φ = 21483112.

The previous prime is 64449347. The next prime is 64449353. The reversal of 64449348 is 84394446.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×64449348³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64449347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2685378 + ... + 2685401.

It is an arithmetic number, because the mean of its divisors is an integer number (12531820).

Almost surely, 2^64449348 is an apocalyptic number.

It is an amenable number.

64449348 is an abundant number, since it is smaller than the sum of its proper divisors (85932492).

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

64449348 is a wasteful number, since it uses less digits than its factorization.

64449348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370786 (or 5370784 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 64449348 is about 8028.0351269785. The cubic root of 64449348 is about 400.9339592696.

The spelling of 64449348 in words is "sixty-four million, four hundred forty-nine thousand, three hundred forty-eight".