64544414 has 32 divisors (see below), whose sum is σ = 109105920. Its totient is φ = 28382400.

The previous prime is 64544413. The next prime is 64544423. The reversal of 64544414 is 41444546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64544413) 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 15 ways as a sum of consecutive naturals, for example, 146807 + ... + 147245.

It is an arithmetic number, because the mean of its divisors is an integer number (3409560).

Almost surely, 2^64544414 is an apocalyptic number.

64544414 is a deficient number, since it is larger than the sum of its proper divisors (44561506).

64544414 is a wasteful number, since it uses less digits than its factorization.

64544414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its digits is 30720, while the sum is 32.

The square root of 64544414 is about 8033.9538211269. The cubic root of 64544414 is about 401.1309949454.

The spelling of 64544414 in words is "sixty-four million, five hundred forty-four thousand, four hundred fourteen".