64466844 has 48 divisors (see below), whose sum is σ = 164075520. Its totient is φ = 19581120.

The previous prime is 64466821. The next prime is 64466849. The reversal of 64466844 is 44866446.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64466796 and 64466805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64466849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9709 + ... + 14939.

It is an arithmetic number, because the mean of its divisors is an integer number (3418240).

Almost surely, 2^64466844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64466844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82037760).

64466844 is an abundant number, since it is smaller than the sum of its proper divisors (99608676).

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

64466844 is a wasteful number, since it uses less digits than its factorization.

64466844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330 (or 5328 counting only the distinct ones).

The product of its digits is 442368, while the sum is 42.

The square root of 64466844 is about 8029.1247343655. The cubic root of 64466844 is about 400.9702363674.

The spelling of 64466844 in words is "sixty-four million, four hundred sixty-six thousand, eight hundred forty-four".