64418646 has 8 divisors (see below), whose sum is σ = 128837304. Its totient is φ = 21472880.

The previous prime is 64418621. The next prime is 64418647. The reversal of 64418646 is 64681446.

It is a sphenic number, since it is the product of 3 distinct primes.

64418646 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64418647) 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 3 ways as a sum of consecutive naturals, for example, 5368215 + ... + 5368226.

It is an arithmetic number, because the mean of its divisors is an integer number (16104663).

Almost surely, 2^64418646 is an apocalyptic number.

64418646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64418646 is a wasteful number, since it uses less digits than its factorization.

64418646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10736446.

The product of its digits is 110592, while the sum is 39.

The square root of 64418646 is about 8026.1227252018. The cubic root of 64418646 is about 400.8702843065.

The spelling of 64418646 in words is "sixty-four million, four hundred eighteen thousand, six hundred forty-six".