64996344 has 240 divisors, whose sum is σ = 223462800. Its totient is φ = 17563392.

The previous prime is 64996307. The next prime is 64996361. The reversal of 64996344 is 44369946.

It is a happy number.

64996344 is a `hidden beast` number, since 6 + 4 + 9 + 9 + 634 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (559872) is a multiple of the sum of its prime factors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 64996344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 730252 + ... + 730340.

It is an arithmetic number, because the mean of its divisors is an integer number (931095).

Almost surely, 2^64996344 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 64996344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111731400).

64996344 is an abundant number, since it is smaller than the sum of its proper divisors (158466456).

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

64996344 is a wasteful number, since it uses less digits than its factorization.

64996344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 124 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 64996344 is about 8062.0310096154. The cubic root of 64996344 is about 402.0650373722.

The spelling of 64996344 in words is "sixty-four million, nine hundred ninety-six thousand, three hundred forty-four".