64344222 has 48 divisors (see below), whose sum is σ = 149909760. Its totient is φ = 19881936.

The previous prime is 64344151. The next prime is 64344307. The reversal of 64344222 is 22244346.

64344222 is a `hidden beast` number, since 6 + 434 + 4 + 222 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14073 + ... + 18075.

It is an arithmetic number, because the mean of its divisors is an integer number (3123120).

Almost surely, 2^64344222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64344222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74954880).

64344222 is an abundant number, since it is smaller than the sum of its proper divisors (85565538).

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

64344222 is a wasteful number, since it uses less digits than its factorization.

64344222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077 (or 4074 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 64344222 is about 8021.4850246074. The cubic root of 64344222 is about 400.7158473090.

Adding to 64344222 its reverse (22244346), we get a palindrome (86588568).

The spelling of 64344222 in words is "sixty-four million, three hundred forty-four thousand, two hundred twenty-two".