64422266 has 4 divisors (see below), whose sum is σ = 96633402. Its totient is φ = 32211132.

The previous prime is 64422257. The next prime is 64422271. The reversal of 64422266 is 66222446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57320041 + 7102225 = 7571^2 + 2665^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16105565 + ... + 16105568.

Almost surely, 2^64422266 is an apocalyptic number.

64422266 is a deficient number, since it is larger than the sum of its proper divisors (32211136).

64422266 is a wasteful number, since it uses less digits than its factorization.

64422266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32211135.

The product of its digits is 27648, while the sum is 32.

The square root of 64422266 is about 8026.3482356549. The cubic root of 64422266 is about 400.8777931223.

The spelling of 64422266 in words is "sixty-four million, four hundred twenty-two thousand, two hundred sixty-six".