65222946 has 48 divisors (see below), whose sum is σ = 146914560. Its totient is φ = 20890080.

The previous prime is 65222933. The next prime is 65222947. The reversal of 65222946 is 64922256.

65222946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 65222946.

It is not an unprimeable number, because it can be changed into a prime (65222947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99556 + ... + 100208.

It is an arithmetic number, because the mean of its divisors is an integer number (3060720).

Almost surely, 2^65222946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65222946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73457280).

65222946 is an abundant number, since it is smaller than the sum of its proper divisors (81691614).

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

65222946 is a wasteful number, since it uses less digits than its factorization.

65222946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 868 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 65222946 is about 8076.0724365251. The cubic root of 65222946 is about 402.5317460140.

The spelling of 65222946 in words is "sixty-five million, two hundred twenty-two thousand, nine hundred forty-six".