64022022 has 64 divisors (see below), whose sum is σ = 146520000. Its totient is φ = 20715264.

The previous prime is 64022011. The next prime is 64022027. The reversal of 64022022 is 22022046.

It is a happy number.

64022022 is a `hidden beast` number, since 640 + 2 + 2 + 0 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 64021986 and 64022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64022027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429604 + ... + 429752.

It is an arithmetic number, because the mean of its divisors is an integer number (2289375).

Almost surely, 2^64022022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64022022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73260000).

64022022 is an abundant number, since it is smaller than the sum of its proper divisors (82497978).

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

64022022 is a wasteful number, since it uses less digits than its factorization.

64022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 64022022 is about 8001.3762566199. The cubic root of 64022022 is about 400.0458739054.

Adding to 64022022 its reverse (22022046), we get a palindrome (86044068).

The spelling of 64022022 in words is "sixty-four million, twenty-two thousand, twenty-two".