64022288 has 40 divisors (see below), whose sum is σ = 136345440. Its totient is φ = 28880640.

The previous prime is 64022263. The next prime is 64022291. The reversal of 64022288 is 88222046.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23156 + ... + 25772.

It is an arithmetic number, because the mean of its divisors is an integer number (3408636).

Almost surely, 2^64022288 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 64022288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68172720).

64022288 is an abundant number, since it is smaller than the sum of its proper divisors (72323152).

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

64022288 is a wasteful number, since it uses less digits than its factorization.

64022288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775 (or 2769 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 64022288 is about 8001.3928787431. The cubic root of 64022288 is about 400.0464279442.

The spelling of 64022288 in words is "sixty-four million, twenty-two thousand, two hundred eighty-eight".